audio_gain_config_are_equal: Treat mode as mask

Values of audio_gain_mode_t are flags. It's possible to
have multiple modes set. Update audio_gain_config_are_equal
to reflect that.

Bug: 142480271
Test: atest android.hardware.audio.common@7.0-util_tests
Change-Id: Ia32aba17f70a33bf82bb2085e6fbc9e247f28e88
Merged-In: Ia32aba17f70a33bf82bb2085e6fbc9e247f28e88
1 file changed