msm: vidc: Fix kw issues

Currently we are using the argument passed to
the function to fill the array values as is
without checking for the sanity. This commit
will add a sanity check on function argument
to avoid array index out of bound access.

Change-Id: I5f23f036441a67a3f3828cc432ea57c1c06bc8ae
CRs-Fixed: 1096134
Signed-off-by: Deepak Kushwah <dkushwah@codeaurora.org>