build_env: block unaligned-access code generation
ARM: Add optimised swahb32() byteswap helper
ARM-spinlock: use ticket algorithm for ARMv6+ locking implementation
ARM: L1 cache optimization
fs: import f2fs from git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git (branch dev)

Up-to-date with
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs.git @04a17fb17fafada39f96bfb41ceb2dc1c11b2af6
(f2fs: avoid to read inline data except first page)

Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>