fix signal for legacy gsm devices and invalid AppType on legacy gsm

http://review.evervolv.com/#/c/8552/   and http://review.evervolv.com/#/c/8551/

Tytung was the first which found this patches. And checked that only
this 2 patches needed to fix gsm.

http://androidforum.tytung.com/nexushd2-jellybean-cm10-2-t78-360.html#p2764

post: 377