ppc4xx: Add basic support for AMCC 460EX/460GT (3/5)

This patch adds basic support for the AMCC 460EX/460GT PPC's.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/include/asm-ppc/processor.h b/include/asm-ppc/processor.h
index 86c5df2..b7a5b28 100644
--- a/include/asm-ppc/processor.h
+++ b/include/asm-ppc/processor.h
@@ -802,6 +802,10 @@
 #define PVR_440SPe_RA	0x53521890 /* 440SPe rev A without RAID 6 support	*/
 #define PVR_440SPe_6_RB	0x53421891 /* 440SPe rev B with RAID 6 support enabled	*/
 #define PVR_440SPe_RB	0x53521891 /* 440SPe rev B without RAID 6 support	*/
+#define PVR_460EX_SE_RA	0x130218A2 /* 460EX rev A with Security Engine    */
+#define PVR_460EX_RA	0x130218A3 /* 460EX rev A without Security Engine */
+#define PVR_460GT_SE_RA	0x130218A0 /* 460GT rev A with Security Engine    */
+#define PVR_460GT_RA	0x130218A1 /* 460GT rev A without Security Engine */
 #define PVR_601		0x00010000
 #define PVR_602		0x00050000
 #define PVR_603		0x00030000