Fix configuring of unrecognized level values

If bad or unrecognized or unsupported level values are configured,
it is possible that they get sent to encoder during configuration.
Avoid this and choose an appropriate level basing on encoder config
settings

Bug: 278199885
Test: atest android.mediav2.cts.EncoderProfileLevelTest

Change-Id: I24e3f36487d8f801fa30bdea4c17fb71557f1a95