Add support to build all current modem drivers (WNCM14A2A, GSM PPP, and ublox-sara). We need a unique config for ublox-sara to be built since the networking params conflict with other modem drivers. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add the HL7800 modem driver to the build_all drivers test. Signed-off-by: Ryan Erickson <ryan.erickson@lairdconnect.com>