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/gdsys/neo/neo.c b/board/gdsys/neo/neo.c
index 628ce3d..a56c2cc 100644
--- a/board/gdsys/neo/neo.c
+++ b/board/gdsys/neo/neo.c
@@ -31,13 +31,13 @@
 
 int board_early_init_f(void)
 {
-	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
-	mtdcr(uicer, 0x00000000);	/* disable all ints */
-	mtdcr(uiccr, 0x00000000);	/* set all to be non-critical */
-	mtdcr(uicpr, 0xFFFFFF80);	/* set int polarities */
-	mtdcr(uictr, 0x10000000);	/* set int trigger levels */
-	mtdcr(uicvcr, 0x00000001);	/* set vect base=0,INT0 highest prio */
-	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, 0xFFFFFF80);	/* set int polarities */
+	mtdcr(UIC0TR, 0x10000000);	/* set int trigger levels */
+	mtdcr(UIC0VCR, 0x00000001);	/* set vect base=0,INT0 highest prio */
+	mtdcr(UIC0SR, 0xFFFFFFFF);	/* clear all ints */
 
 	/*
 	 * EBC Configuration Register: set ready timeout to 512 ebc-clks