Add USB input channel index masks

Test: Attach various multichannel USB devices, check audio policy dumpsys
Bug: 74110332
Change-Id: I9a2d8ab235efcebc129a060d2ee6d6519d5e53dd
(cherry picked from commit 88ce1d930fa55e08dd5056cbc2b1d79bd2e65224)
1 file changed