[PATCH] wireless-regdb: Update regulatory info for Vietnam (VN) for 2025

[Duy Hoang]

According to [1] and [2]:
- Update frequency range to match with Circular
- Update units from dBm to mW to match values listed in Circular
- Add AUTO-BW flags to allow the use of 160 MHz based on other rules
- Update to allow use of 6 GHz band

Detail:
* 2400 - 2483.5 MHz
  - 200 mW (23 dBm)
* 5150 - 5250 MHz
  - 200 mW (23 dBm)
  - Indoor only
* 5250 - 5350 MHz
  - 200 mW (23 dBm)
  - DFS
* 5470 - 5725 MHz
  - 1000 mW (30 dBm)
  - DFS
* 5725 - 5850 MHz
  - 1000 mW (30 dBm)
* 5925 - 6425 MHz
  - LPI
    * 200 mW (23 dBm)
    * Indoor only
  - VLP
    * 25 mW (14 dBm)
    * Indoor and outdoor

[1] https://datafiles.chinhphu.vn/cpp/files/vbpq/2021/10/08-btttt.signed.pdf
[2] https://mic.gov.vn/van-ban-phap-luat/25099.htm

Signed-off-by: Hoang Pham Anh Duy <duy at etylix.me>
---
 db.txt | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/db.txt b/db.txt
index e331d4f..eb882de 100644
--- a/db.txt
+++ b/db.txt
@@ -2001,12 +2001,16 @@ country VI: DFS-FCC
 	(5490 - 5730 @ 160), (24), DFS
 	(5735 - 5835 @ 80), (30)
 
+# Source:
+# https://datafiles.chinhphu.vn/cpp/files/vbpq/2021/10/08-btttt.signed.pdf
+# https://mic.gov.vn/van-ban-phap-luat/25099.htm
 country VN: DFS-FCC
-	(2402 - 2482 @ 40), (20)
-	(5170 - 5250 @ 80), (17)
-	(5250 - 5330 @ 80), (24), DFS
-	(5490 - 5730 @ 80), (24), DFS
-	(5735 - 5835 @ 80), (30)
+	(2400 - 2483.5 @ 40), (200 mW)
+	(5150 - 5250 @ 80), (200 mW), NO-OUTDOOR, AUTO-BW
+	(5250 - 5350 @ 80), (200 mW), DFS, AUTO-BW
+	(5470 - 5725 @ 80), (1000 mW), DFS, AUTO-BW
+	(5725 - 5850 @ 80), (1000 mW), AUTO-BW
+	(5925 - 6425 @ 320), (200 mW), NO-OUTDOOR
 
 # Source:
 # http://www.trr.vu/attachments/category/130/GURL_for_Short-range_Radiocommunication_Devices2.pdf
-- 
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