sound_control: add workaround to prevent audio resets after using custom values.

Based on https://github.com/faux123/Nexus_5/commit/33407fd2d63290540eb0054bc7c6611f2080ea8b

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Change-Id: I6c816140433d6796fd2ba94e764b7f29c37ab693