cl-som-imx7: 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/cl-som-imx7.h

@@ -35,7 +35,6 @@
 	"storagebootcmd=echo Booting from ${storagetype} ...; run ${storagetype}args; run doboot;\0" \
 	"kernel=zImage\0" \
 	"console=ttymxc0\0" \
-	"fdt_high=0xffffffff\0" \
 	"initrd_high=0xffffffff\0" \
 	"fdtfile=imx7d-sbc-imx7.dtb\0" \
 	"fdtaddr=0x83000000\0" \