Port libcutils memset16/32 to x86_64.

Port libcutils memset16/32 assembly SSE2 optimizations to x86_64
architecture. Ensures the same performance on 64-bit arch.

Change-Id: I874a71a884c0d28a152933ddff9cb886c9a6e99e
Signed-off-by: Henrik Smiding <henrik.smiding@intel.com>
4 files changed