msm:vidc: Amend error checks on ION API failures

This change will validate the ION API failures
to fix target freeze issues.

Change-Id: I00fee94955ba9f0e72734daccd22aa7d0bf86dda
CRs-fixed: 412958
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>
ion: cma: Add debug heap ops for CMA heap

For tracking CMA allocation by address and fragmentation
(if any), add debug heap ops which gives buffer allocation
info.

Change-Id: Ia8bed38034b85b2d4dcf84811a348bbbe50dc16b
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>