In order to support loading FTD Overlays when booting with the pxe
command (or extlinux.conf), supported with [1], add the missing
fdtoverlay_addr_r used to load the overlay before applying it to
the FDT loaded at fdt_addr_r.
[1] https://patchwork.ozlabs.org/project/uboot/patch/
20210120085453.
2783678-1-narmstrong@baylibre.com/
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
"scriptaddr=0x08000000\0" \
"kernel_addr_r=0x08080000\0" \
"pxefile_addr_r=0x01080000\0" \
+ "fdtoverlay_addr_r=0x01000000\0" \
"ramdisk_addr_r=0x13000000\0" \
"fdtfile=amlogic/" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
BOOTENV