ARM: CSR: add lost Resource Sharing Control(RSC) node in dts

Signed-off-by: Barry Song <Baohua.Song@csr.com>

arch/arm/boot/dts/prima2-cb.dts

@@ -67,6 +67,11 @@
 				compatible = "sirf,prima2-rstc";
 				reg = <0x88010000 0x1000>;
 			};
+
+			rsc-controller@88020000 {
+				compatible = "sirf,prima2-rsc";
+				reg = <0x88020000 0x1000>;
+			};
 		};
 
 		mem-iobg {