audio: hal: add support for combo backend capture

-Add support to capture 10 channel audio from two backends
 6 channel from SLIM_0_TX and 4 channel from TERT_MI2S_TX.

-add support for SOURCE_DEC_TYPE to support 10 channel
 generic mic capture.

Change-Id: I4fdfb7fa07d916426a0f11d88506039d0556bac7