Stop using immap_t on 85xx

In the future the offsets to various blocks may not be in same location.
Move to using CFG_MPC85xx_*_ADDR as the base of the registers
instead of getting it via &immap.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/board/freescale/mpc8544ds/mpc8544ds.c b/board/freescale/mpc8544ds/mpc8544ds.c
index e13be63..66cb536 100644
--- a/board/freescale/mpc8544ds/mpc8544ds.c
+++ b/board/freescale/mpc8544ds/mpc8544ds.c
@@ -49,10 +49,9 @@
 
 int checkboard (void)
 {
-	volatile immap_t *immap = (immap_t *) CFG_CCSRBAR;
 	volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR);
-	volatile ccsr_lbc_t *lbc = &immap->im_lbc;
-	volatile ccsr_local_ecm_t *ecm = &immap->im_local_ecm;
+	volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR);
+	volatile ccsr_local_ecm_t *ecm = (void *)(CFG_MPC85xx_ECM_ADDR);
 
 	if ((uint)&gur->porpllsr != 0xe00e0000) {
 		printf("immap size error %x\n",&gur->porpllsr);