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/fdts/fvp_spmc_manifest.dts b/plat/arm/board/fvp/fdts/fvp_spmc_manifest.dts
index 4f97339..e159248 100644
--- a/plat/arm/board/fvp/fdts/fvp_spmc_manifest.dts
+++ b/plat/arm/board/fvp/fdts/fvp_spmc_manifest.dts
@@ -35,6 +35,11 @@
 			load_address = <0x7000000>;
 			vcpu_count = <8>;
 			mem_size = <1048576>;
+			/*
+			 * Platform specific SiP SMC call handled at EL3. Used
+			 * to pend an interrupt for testing purpose.
+			 */
+			smc_whitelist = <0x82000100>;
 		};
 		vm2 {
 			is_ffa_partition;