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/board/sbc8641d/sbc8641d.c b/board/sbc8641d/sbc8641d.c
index 2346564..91867d4 100644
--- a/board/sbc8641d/sbc8641d.c
+++ b/board/sbc8641d/sbc8641d.c
@@ -123,12 +123,12 @@
 
 	asm ("sync;isync");
 
-	udelay (500);
+	udelay(500);
 
 	ddr->sdram_cfg = CONFIG_SYS_DDR_CFG_1B;
 	asm ("sync; isync");
 
-	udelay (500);
+	udelay(500);
 	ddr = &immap->im_ddr2;
 
 	ddr->cs0_bnds = CONFIG_SYS_DDR2_CS0_BNDS;
@@ -154,12 +154,12 @@
 
 	asm ("sync;isync");
 
-	udelay (500);
+	udelay(500);
 
 	ddr->sdram_cfg = CONFIG_SYS_DDR2_CFG_1B;
 	asm ("sync; isync");
 
-	udelay (500);
+	udelay(500);
 #endif
 	return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
 }