run: power off only the port which was switched on
run: support TFTP servers using absolute paths

TFTP server requiring absolute directory names are supported (better) -
specify in RUN_OPT "--tftp-absolute" to create Pulsar config with absolute
path names for PXE boot.

Additional a symbolic link is created from the build directory to
"$PXE_TFTP_DIR_BASE$PXE_TFTP_DIR_OFFSET" automatically. This eases the use
together with autopilot for x86.
run: clean pulsar config file during a clean_run

tool/autopilot complains about this left over file
ports-foc: Add l4linux netperf run script

Ref #773
usb: Fix AX88179 receive CRC errors

Call 'set_multicast' and 'link_reset' during card startup. Increase TX skb
buffer allocator.

Ref #773
Implement abstract regulator session interface

Ref #770
Implement cpu frequency scaling for Arndale

* Implements platform driver for Arndale providing Regulator for CPU clock
* Implements a cpu frequency scaling test using the affinity test
* Fixes #770
Extend clock and power units in platform driver

* Add clock and power management for SATA and USB3.0 for Arndale

Fix #771
usb_drv: Use platform drivers and regulator

Ref #773
usb_drv: Dimension queues for usbnet

+ Some code cleanup

Ref #773
base: ARM-FPU 'memcpy_cpu' implementation

Added spec file for ARM-VFPv3 floating-point unit. This shadows
'base/include/arm/' with 'base/include/arm/vfp' and enables a 'memcpy_cpu'
version that mainly uses the FPU. Enabled VFP support for 'foc_arndale'.

Ref #773
usb_drv: Fix performance of  ASIX AX88772

Caused by #773
Arndale: save power by default (Fix #774)

* Use regulator interface in eMMC driver to enable its clock
foc-arndale: use same context area location

Currently, on the Arndale platform, core uses a different thread context
area base address than the other tasks (0x20000000 vs. 0x40000000). This
is problematic, because core calculates the location of the UTCB area of a
new thread relatively to core's own thread context area base. So, the UTCB
area of non-core threads ends up in a virtual address range which is
outside of the task's thread context area and not marked as used in the
task's RM session.

With this patch, the same thread context area base address gets used in
core and in the other tasks.

Fixes #779.
Add 'cpu_frequency' command to cli_monitor (fix #776)

This commit extends the Fiasco.OC specific extensions of the cli_monitor
to enable the user to interactively change or show current CPU frequency
Fix coding style in regulator interface (fix #777)
nova: fix page fault during core bootup

Fixes #781
Add regulators for EHCI controller on Arndale

Fix #780
Add platform_drv to relevant run-scripts (fix #778)
mmio: provide basic verbosity

The verbosity must be enabled at two levels: at compile time
via an enum that switches the availability of verbosity code
and via two members of 'Mmio' named '_read_verbose' and
'_write_verbose'. The latter are initialized to 0 (change this to
enable verbosity globally) and can be used to locally enable
(or disable) verbosity in deriving classes.

Ref #753