fdts: tc0: Add reserved-memory node for OP-TEE

Add reserved-memory region for OP-TEE and mark as no-map. This memory
region is used by OP-TEE as non-secure shared RAM.

Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: I5a22999a8c5550024d0f47e848d35924017df245

fdts/tc0.dts

@@ -109,6 +109,17 @@
 		reg = <0x0 0x80000000 0x0 0x7d000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		optee@0xfce00000 {
+			reg = <0x00000000 0xfce00000 0 0x00200000>;
+			no-map;
+		};
+	};
+
 	psci {
 		compatible = "arm,psci-1.0", "arm,psci-0.2", "arm,psci";
 		method = "smc";