Add patch fixing compilation warning for some debugfs entry defined but
unused.
Fix compilation warning:
/__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-lantiq_xway/ltq-ptm-danube/ltq-ptm/ifxmips_ptm_adsl.c:969:12: error: 'proc_read_genconf' defined but not used [-Werror=unused-function]
969 | static int proc_read_genconf(char *page, char **start, off_t off, int count, int *eof, void *data)
| ^~~~~~~~~~~~~~~~~
/__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-lantiq_xway/ltq-ptm-danube/ltq-ptm/ifxmips_ptm_adsl.c:942:12: error: 'proc_write_wanmib' defined but not used [-Werror=unused-function]
942 | static int proc_write_wanmib(struct file *file, const char *buf, unsigned long count, void *data)
| ^~~~~~~~~~~~~~~~~
/__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-lantiq_xway/ltq-ptm-danube/ltq-ptm/ifxmips_ptm_adsl.c:910:12: error: 'proc_read_wanmib' defined but not used [-Werror=unused-function]
910 | static int proc_read_wanmib(char *page, char **start, off_t off, int count, int *eof, void *data)
| ^~~~~~~~~~~~~~~~
/__w/openwrt/openwrt/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-lantiq_xway/ltq-ptm-danube/ltq-ptm/ifxmips_ptm_adsl.c:892:12: error: 'proc_read_version' defined but not used [-Werror=unused-function]
892 | static int proc_read_version(char *buf, char **start, off_t offset, int count, int *eof, void *data)
| ^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-mips-openwrt-linux-musl_musl/linux-lantiq_xway/ltq-ptm-danube/ltq-ptm/ifxmips_ptm_adsl.c:1164:19: error: 'stricmp' defined but not used [-Werror=unused-function]
1164 | static INLINE int stricmp(const char *p1, const char *p2)
| ^~~~~~~
cc1: all warnings being treated as errors
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
