wireless-regdb: fix patch fuzz

Refresh patches to tidy up some fuzz warnings

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
(cherry picked from commit 12840674d0550e6f5aa077cd2b578988f0c07074)

package/firmware/wireless-regdb/patches/500-world-regd-5GHz.patch

@@ -5,7 +5,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 ---
 --- a/db.txt
 +++ b/db.txt
-@@ -6,7 +6,7 @@ country 00:
+@@ -16,7 +16,7 @@ country 00:
  	# Channel 14. Only JP enables this and for 802.11b only
  	(2474 - 2494 @ 20), (20), NO-IR, NO-OFDM
  	# Channel 36 - 48