arm-ccn: Check Return Values

commit ad6cfef7 from
https://github.com/axxia/linux-yocto.git

 v5.10/standard/axxia-dev/base.

Signed-off-by: John Jacques <john.jacques@intel.com>
Signed-off-by: Quanyang Wang <quanyang.wang@windriver.com>
Signed-off-by: Liwei Song <liwei.song@windriver.com>