Fix some checkpatch warnings in calls to udelay()

Fix up some incorrect code style in calls to functions in the linux/time.h
header, mostly udelay().

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/mem.c b/cmd/mem.c
index 7f7957e..423e6c1 100644
--- a/cmd/mem.c
+++ b/cmd/mem.c
@@ -189,7 +189,7 @@
 
 		/* delay for <count> ms... */
 		for (i=0; i<count; i++)
-			udelay (1000);
+			udelay(1000);
 
 		/* check for ctrl-c to abort... */
 		if (ctrlc()) {
@@ -217,7 +217,7 @@
 
 		/* delay for <count> ms... */
 		for (i=0; i<count; i++)
-			udelay (1000);
+			udelay(1000);
 
 		/* check for ctrl-c to abort... */
 		if (ctrlc()) {