powerpc: mpc8xx: get rid of the multiple PVR_ values

Avoid hardcoding the PVR values in C since they are defined
in processor.h

At the same time, remove those multiple PVR values for 8xx and
keep only one that we call PVR_8xx

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

arch/powerpc/cpu/mpc8xx/cpu.c

@@ -42,7 +42,7 @@ static int check_CPU(long clock, uint pvr, uint immr)
 
 	/* the highest 16 bits should be 0x0050 for a 860 */
 
-	if ((pvr >> 16) != 0x0050)
+	if (PVR_VER(pvr) != PVR_VER(PVR_8xx))
 		return -1;
 
 	k = (immr << 16) |

arch/powerpc/include/asm/processor.h

@@ -973,10 +973,8 @@
  * differentiated by the version number in the Communication Processor
  * Module (CPM).
  */
-#define PVR_821		0x00500000
-#define PVR_823		PVR_821
-#define PVR_850		PVR_821
-#define PVR_860		PVR_821
+#define PVR_8xx		0x00500000
+
 #define PVR_7400	0x000C0000
 
 /*