Increase API coverage for android.app.GameState

Test: atest com.android.server.app.GameManagerServiceTests
Bug: 215435581
Change-Id: I30e9157133bb6e35f9c8d00b4150c233919c4137
Merged-In: I30e9157133bb6e35f9c8d00b4150c233919c4137
1 file changed