Use channel count for CHANNEL_MASK_USE_CHANNEL_ORDER

A mask of 0 (CHANNEL_MASK_USE_CHANNEL_ORDER) means a mask
will be automatically derived from the number of channels.

Bug: 118418076
Test: Play music which channel mask is 0 and check logs
 in AudioPolicyManager::isOffloadSupported()

Change-Id: Id66ee012671f2ef14d77ac3dfd73529a132caf36
1 file changed