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

The latest PPC4xx register cleanup patch missed the UIC defines.
This patch now changes lower case UIC defines to upper case.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/esd/canbt/canbt.c b/board/esd/canbt/canbt.c
index 418d3e2..5a3f61d 100644
--- a/board/esd/canbt/canbt.c
+++ b/board/esd/canbt/canbt.c
@@ -134,13 +134,13 @@
 	 * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
 	 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
 	 */
-	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
-	mtdcr (uicer, 0x00000000);	/* disable all ints */
-	mtdcr (uiccr, 0x00000000);	/* set all to be non-critical */
-	mtdcr (uicpr, 0xFFFFFF81);	/* set int polarities */
-	mtdcr (uictr, 0x10000000);	/* set int trigger levels */
-	mtdcr (uicvcr, 0x00000001);	/* set vect base=0,INT0 highest priority */
-	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr (UIC0SR, 0xFFFFFFFF);	/* clear all ints */
+	mtdcr (UIC0ER, 0x00000000);	/* disable all ints */
+	mtdcr (UIC0CR, 0x00000000);	/* set all to be non-critical */
+	mtdcr (UIC0PR, 0xFFFFFF81);	/* set int polarities */
+	mtdcr (UIC0TR, 0x10000000);	/* set int trigger levels */
+	mtdcr (UIC0VCR, 0x00000001);	/* set vect base=0,INT0 highest priority */
+	mtdcr (UIC0SR, 0xFFFFFFFF);	/* clear all ints */
 
 	return 0;
 }