BACKPORT: msm: ADSPRPC: Check for buffer overflow condition

The buffer length that is being passed could result in overflow
condition causing invalid memory to be accessed.

Bug: 34112914
CRs-Fixed: 1110747
Change-Id: I3e23f31b8cb61f8e77d09a39fab4a2d4c222cf25
Signed-off-by: Sathish Ambley <sathishambley@codeaurora.org>
Signed-off-by: Dennis Cagle <d-cagle@codeaurora.org>
Signed-off-by: Siqi Lin <siqilin@google.com>
(cherry picked from commit ded48b4476bc53662791a4f5fdf5152b63490b5d)