AImageDecoder: only support animation for F16 and 8888 (impl)

Bug: 180594747
Test: I51dedd94aa8ff5d6846cada96861ffca30d509d7

See I03818703dc79942be4e574db31c6e2927ab571ed

Change-Id: Ibce55e4af38713d2e40fcb8846d9d7a939367fd6
1 file changed