Check Point V-80 expand rootfs partiton patch for OpenWrt v25.12.5

diff -urNp a/target/linux/mvebu/image/v-80.bootscript b/target/linux/mvebu/image/v-80.bootscript
--- a/target/linux/mvebu/image/v-80.bootscript
+++ b/target/linux/mvebu/image/v-80.bootscript
@@ -44,6 +44,6 @@ setenv cp_quiet
 # set bootargs with "blkdevparts" option
 run set_bootargs_vx

-test -n "${ow_root}" && setenv bootargs "${bootargs} root=${ow_root} rw rootwait"
+test -n "${ow_root}" && setenv bootargs "${bootargs} blkdevparts=mmcblk${mmc_blk_dev}:${kern_reserved_space}M@${mmc_start_reserved_space}M(kernel-1),${dtb_reserved_space}M(dtb-1),-(rootfs-1) root=${ow_root} rw rootwait"

 booti ${kernel_addr_r} - ${fdt_addr_r}