Introduce new uci-default functions:
- ucidef_set_wireless band ssid [encryption] [key]
- ucidef_set_country cc
They are supposed to be used in /etc/board.d/* scripts to define
board-specific defaults for wireless.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: John Crispin <john@phrozen.org>