Network Error when NET_DEVICE NET_SIM7600 and GNSS GNSS_CELLULAR

[garissman]

I'm getting network Error when on firmware_v5/telelogger

• NET_DEVICE NET_SIM7600

the connection recovers if GNSS != GNSS_CELLULAR otherwise it just stay OFF

By adding

teleClient.net.setGPS(false);

after line 984 the the card connects to the network, but it does disconnect again,

[garissman]

I've created this PR #159 for the recovery, I'm looking for the network error not to happen, I've tested 3 devices same behavior,