GitLab

Modify support for u-blox BMD-345-EVAL which uses the nRF52840
and a Skyworks RFX2411 FEM.

These edits follow the naming cnoventions that is used
with the other u-blox EVKs recently added, or in progress

This board is similar to the nRF52840dk_nrf52840 with the
addition of a FEM. Four Arduino GPIO pins have been
reassigned to the PA_LNA control pins.

u-blox would prefer to use this naming convention to match
other BMD-3xx-EVAL and EVK-NINA-Bx boards recently submitted.

Tested with blinky, button, and Bluetooth peripheral_hr
Checking dts files
Updated CODEOWNERS to rename bmd_345_eval to ubx_bmd345eval_nrf52840
Added CMakeLists.txt, updated board.c
Signed-off-by: Bob Recny <bob.recny@u-blox.com>