init: remove obsolete rle logo

Obsolete RLE 565 logo is used nowhere,
because 565 framebuffer isn't used for years.

It's not necessary to keep this thing alive anymore.

Change-Id: Ie61e168790f791230530cd3eb1c68b1f7344c9a7

Conflicts:

	init/logo.c
Wait for device to disappear after reboot-bootloader.

(Linux only for now) With fastboot reading serial numbers from sysfs, it had
become possible for a fastboot command issued immediately after rebooting
the bootloader to fail, because sysfs still thought the device was online.
To prevent this, after reboot-bootloader we wait for the device to disconnect.

Also made usb_read and usb_write fail immediately if the descriptor has been
closed; this prevents an incorrect error message ("Bad file descriptor")
when errors from fb_getvar are ignored (e.g., by fb_format_supported).

Also removed unused fd param from filter_usb_device, and simplified logic
in usb_write by using do/while instead of a special case for len == 0.

Change-Id: I799b857eab411fd8ad25f5777fc61c685152ea86
Cleanup x86 flags and memset versions

ARCH_X86_HAVE_SSE2 is always true

Change-Id: I680493d14280aafad5448aec727e8d9a84a6db00
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>

Conflicts:

	libcutils/Android.mk