hwc2: Fix the non-secure WriteBack output use case

If Output buffer of Virtual Display is non-secure, set SKIP flag on the
secure layers because if SDE H/W access the non-secure WriteBack output
buffer from secure context, it will result in SMMU fault.

CRs-Fixed: 2115027
Change-Id: I9577f244b62a987cab99168b756ac6f6ff379ba6
1 file changed