Merge remote-tracking branch 'aosp/upstream-master' into mymerge

Followed the following steps:
  # In repo client
  cd external/selinux
  repo sync .
  repo start mymerge .
  git merge aosp/upstream-master --no-ff # resolve any conflicts
  lunch && make -j
  repo upload .

Test: compiles and boots
Change-Id: I75ccf5307012a2517c0fdf13bea806e10b8b8595