ARM: omap3_beagle: Enable Pinctrl

The simple pinctrl driver currently available works with the omap3.
Enabling this will use the device tree to automatically set the
pin-muxing for various drivers.

Based on commit: 57dbf754e37d3347cad441f3869bf72c0d726a71

Signed-off-by: Romain Naour <romain.naour@gmail.com>
diff --git a/configs/omap3_beagle_defconfig b/configs/omap3_beagle_defconfig
index 206118e..a9b2c15 100644
--- a/configs/omap3_beagle_defconfig
+++ b/configs/omap3_beagle_defconfig
@@ -83,6 +83,8 @@
 CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
 CONFIG_SYS_NAND_U_BOOT_OFFS=0x80000
 CONFIG_DM_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_SINGLE=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_OMAP3_SPI=y