msm: camera: icp: io buf config num validation

There are only limitations for CAM_BUF_IN and CAM_BUF_OUT in
config validation, but there will be CAM_BUF_IN_OUT type also.
In process io config, both CAM_BUF_OUT and CAM_BUF_IN_OUT types
are in out_map_entries. No limitation for CAM_BUF_IN_OUT will
lead to out of bound for out_map_entries. This change adds check
for num of io config need in out_map_entries to avoid
out of bound risk.

CRs-Fixed: 3857308
Change-Id: I69163a4264d226d617cbe4f37ba1deb4e6434e31
Signed-off-by: jinguiw <quic_jinguiw@quicinc.com>