refactor(tc): clarify msc0 DT node

This node specifies the location of the MPAM registers for the DSU.
Rename the node to clarify this.

Signed-off-by: Jackson Cooper-Driver <jackson.cooper-driver@arm.com>
Signed-off-by: Icen.Zeyada <Icen.Zeyada2@arm.com>
Change-Id: Ie870a7f31acbc44dd943e76896219b9bbdd7d5b4
diff --git a/fdts/tc3-4-base.dtsi b/fdts/tc3-4-base.dtsi
index 049a4c6..ef8713a 100644
--- a/fdts/tc3-4-base.dtsi
+++ b/fdts/tc3-4-base.dtsi
@@ -17,7 +17,7 @@
 #define MHU_RX_INT_NUM			300
 #define MHU_RX_INT_NAME			"combined"
 
-#define MPAM_ADDR			0x0 0x5f010000 /* 0x5f01_0000 */
+#define DSU_MPAM_ADDR			0x0 0x5f010000 /* 0x5f01_0000 */
 
 #if TARGET_FLAVOUR_FVP
 #define DPU_ADDR			4000000000