[POWERPC] DTS cleanup

Removed the following cruft from .dts files:
* 32-bit in cpu node -- doesn't exist in any spec and not used by kernel
* removed built-in (chrp legacy)
* Removed #interrupt-cells in places they don't need to be set
* Fixed ranges on lite5200*
* Removed clock-frequency from i8259 pic node, not sure where this came from
* Removed big-endian from i8259 pic nodes, this was just bogus

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/boot/dts/mpc836x_mds.dts

@@ -34,7 +34,6 @@
 			timebase-frequency = <3EF1480>;
 			bus-frequency = <FBC5200>;
 			clock-frequency = <1F78A400>;
-			32-bit;
 		};
 	};
 
@@ -51,7 +50,6 @@
 	soc8360@e0000000 {
 		#address-cells = <1>;
 		#size-cells = <1>;
-		#interrupt-cells = <2>;
 		device_type = "soc";
 		ranges = <0 e0000000 00100000>;
 		reg = <e0000000 00000200>;
@@ -178,7 +176,6 @@
 			#address-cells = <0>;
 			#interrupt-cells = <2>;
 			reg = <700 100>;
-			built-in;
 			device_type = "ipic";
 		};
 
@@ -364,7 +361,6 @@
 			#address-cells = <0>;
 			#interrupt-cells = <1>;
 			reg = <80 80>;
-			built-in;
 			big-endian;
 			interrupts = <20 8 21 8>; //high:32 low:33
 			interrupt-parent = < &ipic >;