msm: ais: Security fixes for ispif and cpp

Check the user parameters in ispif to prevent buffer overflow.
Fix out-of-bounds frame or command buffer access in cpp.

CRs-fixed: 1097390 2002207
Change-Id: Ifdaf223d1b1c418596c2fb43d970dad728abd4a3
Signed-off-by: Terence Ho <terenceh@codeaurora.org>