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/amcc/ebony/ebony.c b/board/amcc/ebony/ebony.c
index 2439b03..0543bad 100644
--- a/board/amcc/ebony/ebony.c
+++ b/board/amcc/ebony/ebony.c
@@ -71,21 +71,21 @@
 	/*--------------------------------------------------------------------
 	 * Setup the interrupt controller polarities, triggers, etc.
 	 *-------------------------------------------------------------------*/
-	mtdcr(uic0sr, 0xffffffff);	/* clear all */
-	mtdcr(uic0er, 0x00000000);	/* disable all */
-	mtdcr(uic0cr, 0x00000009);	/* SMI & UIC1 crit are critical */
-	mtdcr(uic0pr, 0xfffffe13);	/* per ref-board manual */
-	mtdcr(uic0tr, 0x01c00008);	/* per ref-board manual */
-	mtdcr(uic0vr, 0x00000001);	/* int31 highest, base=0x000 */
-	mtdcr(uic0sr, 0xffffffff);	/* clear all */
+	mtdcr(UIC0SR, 0xffffffff);	/* clear all */
+	mtdcr(UIC0ER, 0x00000000);	/* disable all */
+	mtdcr(UIC0CR, 0x00000009);	/* SMI & UIC1 crit are critical */
+	mtdcr(UIC0PR, 0xfffffe13);	/* per ref-board manual */
+	mtdcr(UIC0TR, 0x01c00008);	/* per ref-board manual */
+	mtdcr(UIC0VR, 0x00000001);	/* int31 highest, base=0x000 */
+	mtdcr(UIC0SR, 0xffffffff);	/* clear all */
 
-	mtdcr(uic1sr, 0xffffffff);	/* clear all */
-	mtdcr(uic1er, 0x00000000);	/* disable all */
-	mtdcr(uic1cr, 0x00000000);	/* all non-critical */
-	mtdcr(uic1pr, 0xffffe0ff);	/* per ref-board manual */
-	mtdcr(uic1tr, 0x00ffc000);	/* per ref-board manual */
-	mtdcr(uic1vr, 0x00000001);	/* int31 highest, base=0x000 */
-	mtdcr(uic1sr, 0xffffffff);	/* clear all */
+	mtdcr(UIC1SR, 0xffffffff);	/* clear all */
+	mtdcr(UIC1ER, 0x00000000);	/* disable all */
+	mtdcr(UIC1CR, 0x00000000);	/* all non-critical */
+	mtdcr(UIC1PR, 0xffffe0ff);	/* per ref-board manual */
+	mtdcr(UIC1TR, 0x00ffc000);	/* per ref-board manual */
+	mtdcr(UIC1VR, 0x00000001);	/* int31 highest, base=0x000 */
+	mtdcr(UIC1SR, 0xffffffff);	/* clear all */
 
 	return 0;
 }