manifest: android-12.1.0_r2 -> android-12.1.0_r4

Change-Id: Ia058e98bb61868f37e3235da85c25ba73118934d
1 file changed
tree: a33acb3f3db07c58955f78b9f2fde5d21133ac66
  1. snippets/
  2. default.xml
  3. README.mkdn