Seems that mavlink_receiver_linux.cpp inherited the history
from mavlink_receiver.cpp so updates went to it vs mavlink_receiver_nuttx.cpp
Two module.mk files used ifdef instead of ifeq.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
The commander module now compiles for Linux.
state_machine_helper_linux.cpp iterates over the virtual devices vs
all devices under /dev as per NuttX when disabling publishing.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>