layerscape: sysupgrade: require metadata

Require the image metadata check so no invalid image could be fed to
sysupgrade without force option.

Cc: Mathew McBride <matt@traverse.com.au>
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>

target/linux/layerscape/base-files/lib/upgrade/platform.sh

@@ -6,6 +6,8 @@
 RAMFS_COPY_BIN="/usr/sbin/fw_printenv /usr/sbin/fw_setenv /usr/sbin/ubinfo /bin/echo"
 RAMFS_COPY_DATA="/etc/fw_env.config /var/lock/fw_printenv.lock"
 
+REQUIRE_IMAGE_METADATA=1
+
 platform_do_upgrade_traverse_nandubi() {
 	bootsys=$(fw_printenv bootsys | awk -F= '{{print $2}}')
 	newbootsys=2

target/linux/layerscape/image/armv8_64b.mk

@@ -291,5 +291,6 @@ define Device/traverse-ls1043
   IMAGE/root = append-rootfs
   IMAGE/sysupgrade.bin = sysupgrade-tar | append-metadata
   MKUBIFS_OPTS := -m 2048 -e 124KiB -c 4096
+  SUPPORTED_DEVICES := traverse,ls1043s traverse,ls1043v
 endef
 TARGET_DEVICES += traverse-ls1043