Merge QP1A.190228.005

Change-Id: Ieff7b15120695c46d42dd422bea27dc79cc80a71
tree: 5d2c09bc8d521dad0993a5cf6b264eb7eb49a7ad
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml