Merge "MediaCodec: check init status before operations" into rvc-dev am: 4b7a07c46e am: ed0da640ea

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11426588

Change-Id: I65234d5da01ffc1b2dfd2aaf3df0b2cc26bca9e7