audioflinger: send mic mute command to all audio HALs

Mic mute should be sent to all audio HALs, not
only the primary HAL as telephony can use
capture devices on other HALs (e.g USB)

Bug: 17321604.
Change-Id: I658f6084d5b5cdc5a70784661d5cea0b6f81c3a9
1 file changed