Backport upstream patch to add support for the ESMT F50L1G41LC flash
chip. It is used in multiple Cudy products manufactured starting
November 2025.
(cherry picked from commit 9424b2b78626702012dc73616bfd21029712b5f7)
Link: https://github.com/openwrt/openwrt/pull/20963
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
(cherry picked from commit 6ff763e78ceff83ffef7db08f7cc364bbc05ca50)