pico-imx8mq: 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>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>

include/configs/pico-imx8mq.h

@@ -29,7 +29,6 @@
 	"image=Image\0"							\
 	"console=ttymxc0,115200\0"					\
 	"fdt_addr=0x43000000\0"						\
-	"fdt_high=0xffffffffffffffff\0"					\
 	"fdt_file=imx8mq-pico-pi.dtb\0"					\
 	"initrd_addr=0x43800000\0"					\
 	"initrd_high=0xffffffffffffffff\0"				\