ALSA: usb-audio: fix uac control query argument
This patch fixes code readability and should have no functional change. Correct uac control query functions to account for the 1-based indexing of USB Audio Class control identifiers. The function parameter, u8 control, should be the constant defined in audio-v2.h to identify the control to be checked for readability or writeability. This patch fixes all callers that had adjusted, and makes explicit the mapping between audio_feature_info[] array index and the associated control identifier. Signed-off-by: NAndrew Chant <achant@google.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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