[openwrt/openwrt] ipq40xx: mikrotik: generate a RouterBOOT v7 NOR compatible sysupgrade

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/99cfba0721fca4bc006e1965f3d59d3f31d1fe22

commit 99cfba0721fca4bc006e1965f3d59d3f31d1fe22
Author: John Thomson <git at johnthomson.fastmail.com.au>
AuthorDate: Mon Jan 23 07:16:04 2023 +1000

    ipq40xx: mikrotik: generate a RouterBOOT v7 NOR compatible sysupgrade
    
    RouterBOOT v7 for NOR devices does not support the historic yaffs
    "kernel" ELF boot method.
    Generate a compatible kernel
    
    Signed-off-by: John Thomson <git at johnthomson.fastmail.com.au>
---
 target/linux/ipq40xx/image/mikrotik.mk | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/linux/ipq40xx/image/mikrotik.mk b/target/linux/ipq40xx/image/mikrotik.mk
index 8c2c6fa08e..5d6e3c9808 100644
--- a/target/linux/ipq40xx/image/mikrotik.mk
+++ b/target/linux/ipq40xx/image/mikrotik.mk
@@ -5,9 +5,13 @@ define Device/mikrotik_nor
 	KERNEL_NAME := vmlinux
 	KERNEL := kernel-bin | append-dtb-elf
 	IMAGES = sysupgrade.bin
+	IMAGES += sysupgrade-v7.bin
 	IMAGE/sysupgrade.bin := append-kernel | yaffs-filesystem -L | \
 		pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
 		check-size | append-metadata
+	IMAGE/sysupgrade-v7.bin := append-kernel | kernel-pack-npk | \
+		yaffs-filesystem -L | pad-to $$$$(BLOCKSIZE) | \
+		append-rootfs | pad-rootfs | check-size | append-metadata
 endef
 
 define Device/mikrotik_nand