Merge "Allow arm prebuilts for x86_arm builds" am: fcaae6bee8
am: 99e2c216b4

* commit '99e2c216b42bc2d7cad75f1f3aab432f12678b1d':
  Allow arm prebuilts for x86_arm builds

Change-Id: Ife14aedec2f2cae4869f3ed0fb02206bcd29bbb7