Add support for x86 to hello-neon sample

The sample hello-neon was updated to support x86 ABI.
This change is required:
https://android-review.googlesource.com/107511

Change-Id: Icc175afd6785cf454d168973582d7d85455624b5
Signed-off-by: Anton Konovalov <anton.konovalov@intel.com>
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
Refresh android-L headers/libs (WW37)

Change-Id: Ibdb7bebe7a0f73e767b7c62d1f603679163e768c
Merge "Refresh android-L headers/libs (WW37)"
Merge "Add support for x86 to hello-neon sample"
Bugfix for libportable to make compile happy.

Just a tricky issue.
WRAP(stat) -> stat_portable, However we have a struct naming stat_portable.
Let's just rename it.

Change-Id: If0a33661d9d23750d4af45158d1336bb71a08cab
Merge "Bugfix for libportable to make compile happy."