ASoc: msm: qdsp6v2: Add timestamp support for compress capture

Add timestamp support for compress driver.
Modify ASM driver to read the buffer from predefined offset.

CRs-fixed: 1072067
Change-Id: I1c46befc223285495b3c0650e6c3eaae81f58771
Signed-off-by: Satish Babu Patakokila <sbpata@codeaurora.org>