feat(tc): bind SCMI over MHUv3 for TC3

TC2 and TC3 have different the scmi shared memory regions and MHU
parameters, this patch appends the properties in scmi node for TC2 and
TC3 respectively.

Change-Id: Ifd001f780b575987877b4be36eb755a9dbe57e60
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
diff --git a/fdts/tc3.dts b/fdts/tc3.dts
index fa4bed7..fe6a695 100644
--- a/fdts/tc3.dts
+++ b/fdts/tc3.dts
@@ -71,4 +71,18 @@
 		interrupt-affinity = <&CPU0>,  <&CPU1>,  <&CPU2>,  <&CPU3>,
 				     <&CPU4>,  <&CPU5>,  <&CPU6>,  <&CPU7>;
 	};
+
+	sram: sram@6000000 {
+		cpu_scp_scmi_p2a: scp-shmem@80 {
+			compatible = "arm,scmi-shmem";
+			reg = <0x80 0x80>;
+		};
+	};
+
+	firmware {
+		scmi {
+			mboxes = <&mbox_db_tx 0 0 0 &mbox_db_rx 0 0 0 &mbox_db_rx 0 0 1>;
+			shmem = <&cpu_scp_scmi_a2p &cpu_scp_scmi_p2a>;
+		};
+	};
 };