powerpc/8xxx: share PIC defines among 85xx and 86xx

fixes breakeage introduced by commit
a37c36f4e70bada297f281b0e542539ad43e50f6 "powerpc/8xxx: query
feature reporting register for num cores on unknown cpus"

Reported-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/cpu/mpc85xx/traps.c b/arch/powerpc/cpu/mpc85xx/traps.c
index 7e96664..7800717 100644
--- a/arch/powerpc/cpu/mpc85xx/traps.c
+++ b/arch/powerpc/cpu/mpc85xx/traps.c
@@ -288,7 +288,7 @@
 void
 ExtIntException(struct pt_regs *regs)
 {
-	volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+	volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
 
 	uint vect;