chao.an 61250d5516 wireless/wapi: add get country code support
Country command with no args to get the ccode:

Get country code:
cp> wapi country wlan0
CN

Set country code:
cp> wapi country wlan0 JP

Get country code:
cp> wapi country wlan0
JP

Signed-off-by: chao.an <anchao@xiaomi.com>
2022-06-23 23:40:20 +08:00
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