[][MAC80211][WiFi6/7][app][Add ext eeprom write back cmd support]

[Description]
Add ext eeprom write back cmd support
atenl -i phyX -c "eeprom write to ext"

[Release-log]
N/A

Change-Id: Id19575775b6373443dc50d41ed6ff6cf14dbe751
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/9585425
diff --git a/feed/app/atenl/src/atenl.h b/feed/app/atenl/src/atenl.h
index a6695c9..edd3b78 100644
--- a/feed/app/atenl/src/atenl.h
+++ b/feed/app/atenl/src/atenl.h
@@ -435,6 +435,7 @@
 int atenl_nl_check_mtd(struct atenl *an);
 int atenl_nl_write_eeprom(struct atenl *an, u32 offset, u8 *val, int len);
 int atenl_nl_write_efuse_all(struct atenl *an);
+int atenl_nl_write_ext_eeprom_all(struct atenl *an);
 int atenl_nl_update_buffer_mode(struct atenl *an);
 int atenl_nl_set_state(struct atenl *an, u8 band,
 		       enum mt76_testmode_state state);