{delta,zylonite}/lowlevel_init.S: fix typo

Commit 9d803d8c mistakenly changed some constants
from 0x300 into 300 - this patch fixes it.

Pointed out by Tom Evans <tom@ceos.com.au>, see
http://article.gmane.org/gmane.comp.boot-loaders.u-boot/51992 for
details.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/board/zylonite/lowlevel_init.S b/board/zylonite/lowlevel_init.S
index ff17c7e..6f2ad23 100644
--- a/board/zylonite/lowlevel_init.S
+++ b/board/zylonite/lowlevel_init.S
@@ -121,7 +121,7 @@
 /*	ldr r2, [r3] */
 /*	cmp r4, r2 */
 /*	bgt 1b */
-	wait #300
+	wait #0x300
 
 mem_init: