Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/drivers/usb/gadget/mv_udc.c b/drivers/usb/gadget/mv_udc.c
index 7574e31..e6700a8 100644
--- a/drivers/usb/gadget/mv_udc.c
+++ b/drivers/usb/gadget/mv_udc.c
@@ -364,7 +364,7 @@
 		ep->desc = &ep0_out_desc;
 	item = mv_get_qtd(num, in);
 	mv_invalidate_qtd(num);
-	
+
 	if (item->info & 0xff)
 		printf("EP%d/%s FAIL nfo=%x pg0=%x\n",
 			num, in ? "in" : "out", item->info, item->page0);
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index cead25d..7ff4ffd 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -16,7 +16,7 @@
  *	2.Original SL811 driver (hc_sl811.o) by Pei Liu <pbl@cypress.com>
  *	3.Rewrited as sl811.o by Yin Aihua <yinah:couragetech.com.cn>
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/usb/phy/twl4030.c b/drivers/usb/phy/twl4030.c
index 8f5d700..6dcb336 100644
--- a/drivers/usb/phy/twl4030.c
+++ b/drivers/usb/phy/twl4030.c
@@ -21,7 +21,7 @@
  *
  * ------------------------------------------------------------------------
  *
- * SPDX-License-Identifier:	GPL-2.0+ 
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <twl4030.h>