fix: map ns buffer only if needed for SMMU tests

Since SMMU based tests are only supported for FVP platform at the
moment, the non-secure memory region used as work buffer for
SMMU test need not be mapped in the page tables for other platforms.

This patch helps to fix a hang noticed for TC based spm test.

Change-Id: I137eeea684250f9620b4e6d585018ad3d62178b4
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
1 file changed