Add LTE module in vim3l board

@Electr1 @goenjoy
Hi goenjoy,
I am trying to operate sim network and wifi at the same time. but it’s not able to work in parallel so is there any way to operate both at the same time.

@Pradeep_Kumar_Upadhy Network access has priority. When the WiFi signal is insufficient, the access of mobile network will be automatically enabled, but it can not be used at the same time. Only one kind of network is working.