arm: imx: Enable booting from SATA on wandboard.

Enable booting from SATA on the wandboard.

Sata support was already enabled, but distro_bootcmd is not configured
to boot from it.

Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>

include/configs/wandboard.h

@@ -124,6 +124,7 @@
 #define BOOT_TARGET_DEVICES(func) \
 	func(MMC, mmc, 0) \
 	func(MMC, mmc, 1) \
+	func(SATA, sata, 0) \
 	func(USB, usb, 0) \
 	func(PXE, pxe, na) \
 	func(DHCP, dhcp, na)