feat(fvp): new SiP call to set an interrupt pending

This patch introduces an SiP SMC call for FVP platform to set an
interrupt pending. This is needed for testing purposes.

Change-Id: I3dc68ffbec36d90207c30571dc1fa7ebfb75046e
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 3c02485..72f94b0 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -28,6 +28,9 @@
 # the FVP platform. This option defaults to 256.
 FVP_TRUSTED_SRAM_SIZE	:= 256
 
+# Macro to enable helpers for running SPM tests. Disabled by default.
+PLAT_TEST_SPM	:= 0
+
 # This is a very trickly TEMPORARY fix. Enabling ALL features exceeds BL31's
 # progbits limit. We need a way to build all useful configurations while waiting
 # on the fvp to increase its SRAM size. The problem is twofild:
@@ -535,3 +538,6 @@
 ifeq (${ERRATA_ABI_SUPPORT}, 1)
 include plat/arm/board/fvp/fvp_cpu_errata.mk
 endif
+
+# Build macro necessary for running SPM tests on FVP platform
+$(eval $(call add_define,PLAT_TEST_SPM))