Add UpsideDownCake to aapt2 codenames and android.os.Build

Bug: 219519679
Test: m checkbuild
Change-Id: I2b668d1cd875657b27a1d52bda21f238d7020862
Merged-In: I2b668d1cd875657b27a1d52bda21f238d7020862
(cherry picked from commit d27566da4cc7e0de8efe00140fe28db1536bef43)
3 files changed