DO NOT MERGE Add support for additional injected metadata

To support security patch injection, adding support for additional
injection metadata including keyhint, icon_tintable, summary_uri, and
icon_uri.

Bug: 172352420
Test: manual
Change-Id: I6a2f55817679ef1f370cd72925392dcdee2a0831
(cherry picked from commit e3ba876f0e377dec0967fa89ad5e1ec67648cb1f)
13 files changed
tree: 63c06a37c4f66e7e35d3d1a7626743a1456401a7
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. PREUPLOAD.cfg