wireless-regdb: Update to version 2020.11.20

wireless-regdb: Update to version 2020.11.20

9efa1da wireless-regdb: update regulatory rules for Egypt (EG)
ede87f5 wireless-regdb: restore channel 12 & 13 limitation in the US
5bcafa3 wireless-regdb: Update regulatory rules for Croatia (HR)
4e052f1 wireless-regdb: Update regulatory rules for Pakistan (PK) on 5GHz
f9dfc58 wireless-regdb: update 5.8 GHz regulatory rule for GB
c19aad0 wireless-regdb: Update regulatory rules for Kazakhstan (KZ)
07057d3 wireless-regdb: update regulatory database based on preceding changes

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>