AppleTV: Enable MSI support for ATV1

Not sure why Message Signaled interrupts was disabled, but the ATV1 hardware *does* support MSI and we specifically enable MSI for the nvidia driver.

Here is a list of hardware that supports and uses MSI on AppleTV 1st Gen :

```
00:01.0 PCI bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express PCI Exp
ress Root Port (rev 03) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        Memory behind bridge: 20000000-21ffffff
        Prefetchable memory behind bridge: 0000000010000000-000000001fffffff
        Capabilities: [88] Subsystem: Intel Corporation Device 0000
        Capabilities: [80] Power Management version 2
        Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [a0] Express Root Port (Slot+), MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [140] Root Complex Link
        Kernel driver in use: pcieport

00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02)
        Subsystem: Realtek Semiconductor Co., Ltd. Device 0885
        Flags: bus master, fast devsel, latency 0, IRQ 42
        Memory at 22a00000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [50] Power Management version 2
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [130] Root Complex Link
        Kernel driver in use: snd_hda_intel

00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 00003000-00003fff
        Memory behind bridge: 22000000-228fffff
        Prefetchable memory behind bridge: 0000000022b00000-0000000022cfffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Gammagraphx, Inc. (or missing ID) Device 0000
        Capabilities: [a0] Power Management version 2
        Capabilities: [100] Virtual Channel
        Capabilities: [180] Root Complex Link
        Kernel driver in use: pcieport

01:00.0 VGA compatible controller: NVIDIA Corporation G72M [Quadro NVS 110M/GeForce Go 7300] (rev a1) (prog-if 00 [VGA controller])
        Subsystem: Apple Inc. Device 0081
        Flags: bus master, fast devsel, latency 0, IRQ 44
        Memory at 21000000 (32-bit, non-prefetchable) [size=16M]
        Memory at 10000000 (64-bit, prefetchable) [size=256M]
        Memory at 20000000 (64-bit, non-prefetchable) [size=16M]
        Capabilities: [60] Power Management version 2
        Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [128] Power Budgeting <?>
        Kernel driver in use: nvidia
        Kernel modules: nvidia

02:00.0 Multimedia controller: Broadcom Corporation BCM70015 Video Decoder [Crystal HD]
        Subsystem: Broadcom Corporation BCM70015 Video Decoder [Crystal HD]
        Flags: bus master, fast devsel, latency 0, IRQ 43
        Memory at 22800000 (64-bit, non-prefetchable) [size=64K]
        Memory at 22000000 (64-bit, non-prefetchable) [size=8M]
        Capabilities: [48] Power Management version 3
        Capabilities: [60] Vendor Specific Information: Len=6c <?>
        Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [cc] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [13c] Virtual Channel
        Kernel driver in use: crystalhd
        Kernel modules: crystalhd
```
AppleTV: Disable PAT

The AppleTV hardware does not have PAT support.
AppleTV: Enable PCIEAER and PCIEPM support

The AppleTV hardware supports both PCI-Express Advanced Error Reporting and PCI-Express Power Management.
AppleTV: Disable intel_idle support

The AppleTV hardware does not support intel_idle.
AppleTV: Disable MPPARSE

The AppleTV hardware does not have MPPARSE support (as it does not have SMP capabilities).
Merge pull request #2219 from dagwieers/kernel-msi

AppleTV: Enable MSI support for ATV1
Merge pull request #2221 from dagwieers/kernel-mpparse

AppleTV: Disable MPPARSE support
Merge pull request #2222 from dagwieers/atv-kernel-pat

AppleTV: Disable PAT support
AppleTV: Disable RDRAND support

The AppleTV hardware does not have RDRAND support.
Merge pull request #2224 from dagwieers/atv-kernel-pcie

AppleTV: Enable PCIEAER and PCIEPM support
Fix slow syslogd remote syslog startup and klogd interaction

Because syslogd is not properly started its remote syslog support when klogd dumps its kernel ring buffer content to it, most of the kernel boot output is missing on the remote syslog server. By adding a small delay between syslogd and klogd, we are sure the messages are properly send to the remote syslog by syslogd.
Merge pull request #2225 from dagwieers/atv-kernel-intel_idle

AppleTV: Disable intel_idle support
AppleTV: Make sure loop devices are allocated dynamically

CONFIG_BLK_DEV_LOOP_MIN_COUNT: Number of loop devices to pre-create at init time

Static number of loop devices to be unconditionally pre-created at init time.

This default value can be overwritten on the kernel command line or with module-parameter loop.max_loop.

The historic default is 8. If a late 2011 version of losetup(8) is used, it can be set to 0, since needed loop devices can be dynamically allocated with the /dev/loop-control interface.
Merge pull request #2233 from dagwieers/syslog-fix

Fix slow syslogd remote syslog startup and klogd interaction