openwrt
bcm47xx: base-files: hack sysinfo to allow ASU sysupgrades
This old platform(no DTS) is using nvram numeric fields (or "unknown" string) for its board_name [^1]. Allow ASU sysupgrades by preserving that value in /tmp/sysinfo/boardtype for board-detection/configuration logic, and derive a canonical board_name from /tmp/sysinfo/model in the form "vendor,device-variant".
Only a few target profile image names are not consistent in the last suffix, uniform them.
A few images with (NA) and (ROW) variants are only meant to be compatible with the upgrade process in the OEM firmware using these NETGEAR_BOARD_ID and NETGEAR_REGION fields but the images are compatibles(only if the NETGEAR_BOARD_ID is shared,due to platform check) [^2] (i.e. netgear_wnr3500l). Add SUPPORTED_DEVICES to one of these variant in order to allow ASU sysupgrade profile identification.
Fixes: https://github.com/openwrt/openwrt/commit/d7d10f2c1e8511fe07c9760e85f2272a85168f8d "brcm47xx: rework model detection" Fixes: https://github.com/openwrt/asu/issues/419 (Netgear wnr3500L) Closes: https://github.com/openwrt/asu/issues/1366 Closes: https://github.com/openwrt/asu/issues/878 Fixes: https://github.com/openwrt/asu/issues/1042 (Asus RT-N16) [^3] Fixes: https://forum.openwrt.org/t/luci-attended-sysupgrade-support-thread/230552/115 (Asus RT-N16) [^3] [^1]: bcm47xx board https://github.com/gregkh/linux/blob/master/arch/mips/bcm47xx/board.c [^2]: sysupgrade platform check https://github.com/openwrt/openwrt/blob/main/target/linux/bcm47xx/base-files/lib/upgrade/platform.sh [^3]: bcm47xx bordtype, boardnum info https://wl500g.info/showthread.php?27828-Asus-amp-Broadcom&styleid=18
