ARM: dts: Protect pinctrl headers against multiple inclusions

Pinctrl headers were not protected with #ifndef.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

include/dt-bindings/pinctrl/am33xx.h

@@ -2,6 +2,9 @@
  * This header provides constants specific to AM33XX pinctrl bindings.
  */
 
+#ifndef _DT_BINDINGS_PINCTRL_AM33XX_H
+#define _DT_BINDINGS_PINCTRL_AM33XX_H
+
 #include <include/dt-bindings/pinctrl/omap.h>
 
 /* am33xx specific mux bit defines */
@@ -35,3 +38,5 @@
 #undef PIN_OFF_INPUT_PULLDOWN
 #undef PIN_OFF_WAKEUPENABLE
 
+#endif
+

include/dt-bindings/pinctrl/omap.h

@@ -5,6 +5,9 @@
  * Copyright (C) 2009-2010 Texas Instruments
  */
 
+#ifndef _DT_BINDINGS_PINCTRL_OMAP_H
+#define _DT_BINDINGS_PINCTRL_OMAP_H
+
 /* 34xx mux mode options for each pin. See TRM for options */
 #define MUX_MODE0	0
 #define MUX_MODE1	1
@@ -48,3 +51,5 @@
 #define PIN_OFF_INPUT_PULLDOWN	(OFF_EN | OFF_PULL_EN)
 #define PIN_OFF_WAKEUPENABLE	WAKEUP_EN
 
+#endif
+