[PATCH] wireless-regdb: Update regulatory reference link for Türkiye (TR)

[Ahmet Duran]

The previous reference link for the Turkish regulatory domain is dead.
Update it to point to the current official regulation document provided
by the Information and Communication Technologies Authority (BTK).

Also added a fallback search link to the BTK regulations page to ensure
the document can easily be found if the direct URL changes in the future.

Signed-off-by: Ahmet Duran <ahmetdur10 at gmail.com>
---
 db.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/db.txt b/db.txt
index fdc2c13..528a9ec 100644
--- a/db.txt
+++ b/db.txt
@@ -1703,7 +1703,9 @@ country TN: DFS-ETSI
 
 # Source:
 # Technical Criteria for Radio Devices and Systems Excluded from Frequency Allocation, Sept 9, 2022
-# https://www.btk.gov.tr/uploads/pages/ftm-teknik-olcutler-ek-5.pdf
+# https://www.btk.gov.tr/s3/web-btk-site/7708c26c-5161-4919-8b3d-daa31d4ac8fb/2026/03/0965cb2b-c346-4626-85f6-fa06fb722be5.pdf
+# Fallback search link for the latest version:
+# https://www.btk.gov.tr/en/regulations?search=Frekans+Tahsisinden+Muaf+Telsiz+Cihaz+ve+Sistemlerine+%C4%B0li%C5%9Fkin+Teknik+%C3%96l%C3%A7%C3%BCtler
 country TR: DFS-ETSI
 	(2400 - 2483.5 @ 40), (20)
 	(5150 - 5250 @ 80), (23), NO-OUTDOOR, AUTO-BW, wmmrule=ETSI
-- 
2.56.0