ppc4xx: Convert PPC4xx SDRAM defines from lower case to upper case

The latest PPC4xx register cleanup patch missed some SDRAM defines.
This patch now changes lower case UIC defines to upper case. Also
some names are changed to match the naming in the IBM/AMCC users
manuals (e.g. mem_mcopt1 -> SDRAM0_CFG).

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/csb472/init.S b/board/csb472/init.S
index 105cb71..b31bd04 100644
--- a/board/csb472/init.S
+++ b/board/csb472/init.S
@@ -171,26 +171,26 @@
 	 * Disable memory controller to allow
 	 * values to be changed.
 	 */
-	WDCR_SDRAM(mem_mcopt1, 0x00000000)
+	WDCR_SDRAM(SDRAM0_CFG, 0x00000000)
 
 	/*
 	 * Configure Memory Banks
 	 */
-	WDCR_SDRAM(mem_mb0cf, 0x00062001)
-	WDCR_SDRAM(mem_mb1cf, 0x00000000)
-	WDCR_SDRAM(mem_mb2cf, 0x00000000)
-	WDCR_SDRAM(mem_mb3cf, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B0CR, 0x00062001)
+	WDCR_SDRAM(SDRAM0_B1CR, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B2CR, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B3CR, 0x00000000)
 
 	/*
 	 * Set up SDTR1 (SDRAM Timing Register)
 	 */
-	WDCR_SDRAM(mem_sdtr1, 0x00854009)
+	WDCR_SDRAM(SDRAM0_TR, 0x00854009)
 
 	/*
 	 * Set RTR (Refresh Timing Register)
 	 */
-	WDCR_SDRAM(mem_rtr,   0x10000000)
-	/* WDCR_SDRAM(mem_rtr,   0x05f00000) */
+	WDCR_SDRAM(SDRAM0_RTR,   0x10000000)
+	/* WDCR_SDRAM(SDRAM0_RTR,   0x05f00000) */
 
 	/********************************************************************
 	 * Delay to ensure 200usec have elapsed since reset. Assume worst
@@ -206,7 +206,7 @@
 	/********************************************************************
 	 * Set memory controller options reg, MCOPT1.
 	 *******************************************************************/
-	WDCR_SDRAM(mem_mcopt1,0x80800000)
+	WDCR_SDRAM(SDRAM0_CFG,0x80800000)
 
 ..sdri_done:
 	blr				/* Return to calling function */