asoc: Expose mixer control to set noirq capture volume

NOIRQ platform driver registers volume controls for playback
with ALSA control module. Extend this for capture stream as well.

CRs-Fixed: 2222250
Change-Id: I04a3bfe0a8f44b5cb7b8f24d05cf6d72dabf1fd9
Signed-off-by: Haynes Mathew George <hgeorge@codeaurora.org>
Signed-off-by: Karthikeyan Mani <kmani@codeaurora.org>