Merge tag android-5.1.0_r1 into AOSP_5.1_MERGE

Change-Id: If9076ac14789a04b94a0f33e3ae671c01298f673
tree: 8bd2eed63e62c81ee09bad161e72e3f953fe27b2
  1. src/
  2. Android.mk
  3. COPYING
  4. MODULE_LICENSE_APACHE2