mx6sxsabresd: Stop disabling device tree relocation

Remove setting of fdt_high to ~0, which disables device tree relocation,
from the default environment. Doing so prevents U-Boot from correcting
problems such as having an unaligned device tree and leads to various
failure modes in the OS.

Signed-off-by: Tom Rini <trini@konsulko.com>

include/configs/mx6sxsabresd.h

@@ -39,7 +39,6 @@
 	"script=boot.scr\0" \
 	"image=zImage\0" \
 	"console=ttymxc0\0" \
-	"fdt_high=0xffffffff\0" \
 	"initrd_high=0xffffffff\0" \
 	"fdt_file=imx6sx-sdb.dtb\0" \
 	"fdt_addr=0x88000000\0" \