[PATCH] wireless-regdb: update regulatory rules for Bangladesh (BD)

wireless-regdb: update regulatory rules for Bangladesh (BD)

Update regulatory rules for Bangladesh (BD) based on the official BTRC
(Bangladesh Telecommunication Regulatory Commission) directive dated
September 15, 2024.

Enables U-NII-1/2A, U-NII-2C (DFS), U-NII-3/4, and lower 6 GHz (5925-6425
MHz).

Official BTRC Notice:
https://btrc.gov.bd/pages/notices/6922ee00dbfbab28ce0c438d

User Impact Reference:
https://community.intel.com/t5/Wireless/6-GHz-Wi-Fi-6E-Not-Detected-on-Intel-AX211-in-Bangladesh/m-p/1740885

Signed-off-by: Ibrahim Hossain Abir <[email protected]>
---
 db.txt | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/db.txt b/db.txt
index 0000000..1111111 100644
--- a/db.txt
+++ b/db.txt
@@ -223,5 +223,7 @@ country BD: DFS-JP
  (2402 - 2482 @ 40), (20)
- (5735 - 5835 @ 80), (30)
+ (5150 - 5350 @ 80), (20), NO-OUTDOOR, AUTO-BW
+ (5470 - 5725 @ 160), (20), DFS, AUTO-BW
+ (5725 - 5850 @ 80), (30)
+ (5925 - 6425 @ 320), (23), NO-OUTDOOR