fix(zynqmp): resolve coverity warnings

Fix for coverity issues in pm_service component.
Fixed compilation error for versal platform.

Change-Id: I948f01807e67ad1e41021557e040dcbfb7b3a39e
Signed-off-by: HariBabu Gattem <haribabu.gattem@amd.com>
Signed-off-by: Naman Patel <naman.patel@amd.com>
6 files changed