msm8660: suppress some logcat spam.

There is a lot of logcat spamming going on by this. Moved some logs down
a level to ALOGV, and some of the AudioHardware.xxxx.(standby) commented
out completely.

Adapted from this patch: http://review.cyanogenmod.org/#/c/48202/

Change-Id: I6b33fbc8e004337a7670452c0c1823a06d244de9