sc520 now builds fine. On to testing.

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2021 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

src/cpu/amd/sc520/raminit.c

@@ -345,6 +345,12 @@ void sc520_udelay(int microseconds) {
 		;
 }
 
+/* looks like we define this now */
+void
+udelay(int microseconds) {
+	sc520_udelay(microseconds);
+}
+
 
 static void dumpram(void){
   print_err("ctl "); print_err_hex8(*drcctl); print_err("\r\n");