ARM: dts: am33xx: Added AM33XX_PADCONF macro

AM33XX_PADCONF takes three instead of two parameters, to make
future changes to #pinctrl-cells easier.

For old boards which are not mainlined, we left the AM33XX_IOPAD
macro.
Signed-off-by: Christina Quast <cquast@hanoverdisplays.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

include/dt-bindings/pinctrl/omap.h

@@ -65,6 +65,7 @@
 #define DM814X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
 #define DM816X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
 #define AM33XX_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
+#define AM33XX_PADCONF(pa, dir, mux)	OMAP_IOPAD_OFFSET((pa), 0x0800) ((dir) | (mux))
 
 /*
  * Macros to allow using the offset from the padconf physical address