[POWERPC] Fix the ability to reset on MPC8544 DS and MPC8568 MDS boards

Add global-utilities node with has-rstcr on MPC8544 DS and MPC8568 MDS
boards so they are able to reset properly.
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/mpc8544ds.dts

@@ -350,6 +350,12 @@
 
 		};
 
+		global-utilities@e0000 {	//global utilities block
+			compatible = "fsl,mpc8548-guts";
+			reg = <e0000 1000>;
+			fsl,has-rstcr;
+		};
+
 		mpic: pic@40000 {
 			clock-frequency = <0>;
 			interrupt-controller;

arch/powerpc/boot/dts/mpc8568mds.dts

@@ -170,6 +170,12 @@
 			interrupt-parent = <&mpic>;
 		};
 
+		global-utilities@e0000 {	//global utilities block
+			compatible = "fsl,mpc8548-guts";
+			reg = <e0000 1000>;
+			fsl,has-rstcr;
+		};
+
 		pci@8000 {
 			interrupt-map-mask = <f800 0 0 7>;
 			interrupt-map = <