bluesleep: implement to support bluedroid

"#define BT_BLUEDROID_SUPPORT 1" -> support BlueDroid
"#define BT_BLUEDROID_SUPPORT 0" -> support BlueZ
Since BlueDroid does not use kernel space HCI driver now, we add the
below 2 /proc nodes to make BlueDroid able to send HCI events to
bluesleep driver.
write 1 to /proc/bluetooth/sleep/lpm -> equivalent to HCI_DEV_REG event
write 0 to /proc/bluetooth/sleep/lpm -> equivalent to HCI_DEV_UNREG event
write 1 to /proc/bluetooth/sleep/btwrite -> equivalent to HCI_DEV_WRITE event

Change-Id: I718c5b4d0f327f1aeedca12bd18e25e53b98e2e3
bluesleep: setup uart port

Change-Id: Ia4ef3f0cc825fd064af7a8f4cf5f05f9534fdc26
lib/lzo: Rename lzo1x_decompress.c to lzo1x_decompress_safe.c

Rename the source file to match the function name and thereby
also make room for a possible future even slightly faster
"non-safe" decompressor version.

Change-Id: I482ee415d43c5aaa77d34946ae1fa0af5465b007
Signed-off-by: Markus F.X.J. Oberhumer <markus@oberhumer.com>
lib/lzo: Update LZO compression to current upstream version

This commit updates the kernel LZO code to the current upsteam version
which features a significant speed improvement - benchmarking the Calgary
and Silesia test corpora typically shows a doubled performance in
both compression and decompression on modern i386/x86_64/powerpc machines.

Change-Id: Ifcde45460c856644097bdeb612f0d68c6429f03c
Signed-off-by: Markus F.X.J. Oberhumer <markus@oberhumer.com>
lib/lzo: huge LZO decompression speedup on ARM by using unaligned access

Change-Id: I4dc172b2822504c3f2db1913ed9404e031861d55
Signed-off-by: Markus F.X.J. Oberhumer <markus@oberhumer.com>
ARM: kconfig: select HAVE_EFFICIENT_UNALIGNED_ACCESS for CPUv6+ && MMU

Modern ARM CPUs can perform efficient unaligned memory accesses in
hardware and this feature is relied up on by code such as the dcache
word-at-a-time name hashing.

[pawitp: adapt to kernel 3.0]

Change-Id: I41559fc9255229e2601f4bef28aa8d48246156b7
Signed-off-by: Will Deacon <will.deacon@arm.com>