FS#3151 - Kimax U35WF overlay memory

[openwrt-bot]

jlsesma:

Kimax Blueendless U35WF
Original Kimax firmware

install
openwrt-19.07.3-ramips-mt7620-kimax_u35wf-initramfs-kernel.bin
problems: IP configuration lost after power up
unable to install any package (overlay memory),
unable to generate backup firmware config archive (no contents).
No version 18.06 available for this model to downgrade.

Flash new firmware image
openwrt-19.07.3-ramips-mt7620-kimax_u35wf-squashfs-sysupgrade.bin
and ok