wireless-regdb: correct allowed width for JP
wireless-regdb: correct allowed width for JP

It is bogus to have

end_freq - start_freq < max_width

I have tested this.

Reported-by: Herton Ronaldo Krzesinski <521f5e275cfb2d7a088db6fd2470049d61870456@mandriva.com.br>
Signed-off-by: Luis R. Rodriguez <79e6b8107a8aa3944e09fad43634662ac3b91a0b@atheros.com>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

CTU-IIG/802.11p-wireless-regdb,vaginessa/wireless-regdb,0x90/wireless-regdb,perillamint/wireless-regdb-hx,Distrotech/wireless-regdb