wireless-regdb: disable channel 14 in JP

Fixes: WIFI-14962
Signed-off-by: John Crispin <john@phrozen.org>

patches/0099-wireless-regdb-fix-channel-14-in-JP.patch

@@ -0,0 +1,39 @@
+From d0a0f0304f292a40f2fcdd20b320089627b0f05f Mon Sep 17 00:00:00 2001
+From: John Crispin <john@phrozen.org>
+Date: Thu, 7 Aug 2025 14:50:51 +0200
+Subject: [PATCH] wireless-regdb: fix channel 14 in JP
+
+Signed-off-by: John Crispin <john@phrozen.org>
+---
+ .../patches/200-jp-no-channel-14.patch        | 19 +++++++++++++++++++
+ 1 file changed, 19 insertions(+)
+ create mode 100644 package/firmware/wireless-regdb/patches/200-jp-no-channel-14.patch
+
+diff --git a/package/firmware/wireless-regdb/patches/200-jp-no-channel-14.patch b/package/firmware/wireless-regdb/patches/200-jp-no-channel-14.patch
+new file mode 100644
+index 0000000000..ea1411cfdd
+--- /dev/null
++++ b/package/firmware/wireless-regdb/patches/200-jp-no-channel-14.patch
+@@ -0,0 +1,19 @@
++--- a/db.txt
+++++ b/db.txt
++@@ -16,8 +16,6 @@ country 00:
++ 	(2402 - 2472 @ 40), (20)
++ 	# Channel 12 - 13.
++ 	(2457 - 2482 @ 20), (20), NO-IR, AUTO-BW
++-	# Channel 14. Only JP enables this and for 802.11b only
++-	(2474 - 2494 @ 20), (20), NO-IR, NO-OFDM
++ 	# Channel 36 - 48
++ 	(5170 - 5250 @ 80), (20), AUTO-BW
++ 	# Channel 52 - 64
++@@ -945,7 +943,6 @@ country JO: DFS-JP
++ # https://www.soumu.go.jp/main_content/000833682.pdf
++ country JP: DFS-JP
++ 	(2402 - 2482 @ 40), (20)
++-	(2474 - 2494 @ 20), (20), NO-OFDM
++ 	(4910 - 4990 @ 40), (23)
++ 	(5170 - 5250 @ 80), (20), AUTO-BW
++ 	(5250 - 5330 @ 80), (20), DFS, AUTO-BW
+-- 
+2.34.1
+