Camera2: Document exception when SessionConfiguration is not supported

CameraDeviceSetup#getSessionCharacteristics currently has undefined
behavior if the SessionConfiguration is not supported by the HAL.

This patch documents that cameraservice will raise an
IllegalArgumentException if the passed SessionConfiguration is
not supported by the HAL.

Bug: 327008530
Test: atest android.hardware.camera2.cts.CameraDeviceSetupTest passes
Change-Id: Id1c6675692954cf383d3c83ec203df5ba0afe1ed
1 file changed