msm: pil-mss: Add support for q6v5_6_0

A new minor version for q6v5 ver.6 is added, which
is required to force clock on during source switch.

Change-Id: I9b7f485f01ea956304a88a5508474656c6d0f9cb
Signed-off-by: Tirupathi Reddy T <tirupath@codeaurora.org>
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>