Merge tag 'android-security-15.0.0_r7' into staging/lineage-22.1_android-security-15.0.0_r7

Android security 15.0.0 release 7

* tag 'android-security-15.0.0_r7':
  Fix for SAF loophole in the lastAccessedStack.
  Prevent clickjacking attack in DocsUi.

Change-Id: Iedf8791b46a9a822bdd6920abab59693a669bccf