ltq-atm: apply local patch to the source files

ltq-atm: apply local patch to the source files

This package is maintained by the OpenWrt local repository. There
is no need to modify it with the patch file. Just apply all patches
to the source files.

Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Link: https://github.com/openwrt/openwrt/pull/18744
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 491764f0f07dc601e1671940d3d3ae41801ae736)
Signed-off-by: Nora Matthias Schiffer <neocturne@universe-factory.net>
Link: https://github.com/openwrt/openwrt/pull/20440
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>