Since DEFAULT_MAX_CHANNEL_COUNT was increased from 8 to 10,
getMaxSupportedChannelCountForPassthrough always throws if its loop
enters its second iteration (channelCount of 9). This is due to
Util.getAudioTrackChannelConfig returning CHANNEL_INVALID when passed a
channelCount of 9, and setting CHANNEL_INVALID as the AudioFormat's
channel mask throws an exception.
This change skips each iteration where CHANNEL_INVALID is returned.