ASoC: msm: Add Buffer overflow check

The overflow check is required to ensure that user space data
in kernel may not go beyond buffer boundary.

Change-Id: Ia0c785b8c895c317e9f904bc738df5217b837191
CRs-Fixed: 563086
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
Signed-off-by: Mohammad Johny Shaik <mjshai@codeaurora.org>
Signed-off-by: Ajay Dudani <adudani@codeaurora.org>