usb: Remove <common.h> and add needed includes

Remove <common.h> from this driver directory and when needed
add missing include files directly.

Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/usb/dwc3/samsung_usb_phy.c b/drivers/usb/dwc3/samsung_usb_phy.c
index abbd413..0a77130 100644
--- a/drivers/usb/dwc3/samsung_usb_phy.c
+++ b/drivers/usb/dwc3/samsung_usb_phy.c
@@ -7,7 +7,7 @@
  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
  */
 
-#include <common.h>
+#include <asm/io.h>
 #include <asm/arch/power.h>
 #include <asm/arch/xhci-exynos.h>
 #include <linux/delay.h>