SPM: Add invalid check for FP support if SFN model is enabled

Current FP implementation only support IPC model in TF-M, add invalid
check for FP support in hybird or hardware ABI type if SFN model is
enabled.

Note:
At current stage, FPU is only enabled in SPE. NSPE is not allowed to
access FPU when FPU is enabled for SPE only.

Signed-off-by: Feder Liang <Feder.Liang@arm.com>
Change-Id: I915d76dbc6f82d762e28007cee68a99aac32367d
1 file changed