SPM: Add third cactus partition to manifests

Add information about the third partition so it can be loaded into SPM
when running the tests

Signed-off-by: Ruari Phipps <ruari.phipps@arm.com>
Change-Id: I5544e88df391ef294ddf6b5750d468d3e74892b1

plat/arm/board/fvp/fdts/fvp_spmc_manifest.dts

@@ -38,6 +38,13 @@
 			vcpu_count = <2>;
 			mem_size = <1048576>;
 		};
+		vm3 {
+			is_ffa_partition;
+			debug_name = "cactus-tertiary";
+			load_address = <0x7200000>;
+			vcpu_count = <2>;
+			mem_size = <1048576>;
+		};
 	};
 
 	cpus {

plat/arm/board/fvp/fdts/fvp_tb_fw_config.dts

@@ -92,6 +92,11 @@
 			load-address = <0x7100000>;
 			owner = "Plat";
 		};
+
+		cactus-tertiary {
+			uuid = <0x735cb579 0xb9448c1d 0xe1619385 0xd2d80a77>;
+			load-address = <0x7200000>;
+		};
 #endif
 	};