Changed AddedIn annotation for built-in

Updated annotation will have platform as enum. not a int

Bug: 242657661
Test: atest AnnotationTest
Change-Id: Ic3bc0511a594bb76b029b124f7e3a3ed740abb4b
Merged-In: Ic3bc0511a594bb76b029b124f7e3a3ed740abb4b
(cherry picked from commit c1a577d603e0eb46821016aead504620690d299c)
14 files changed
tree: a76c960cbf231da739b1f215b540b796d66cd1f5
  1. builtInServices/
  2. updatableServices/
  3. .gitignore
  4. OWNERS