Set a parameter value TEMPORARILY to RAM. It will be reset to
default on system reboot. Send the ACTION
MAV_ACTION_STORAGE_WRITE to PERMANENTLY write the RAM contents
to EEPROM. IMPORTANT: The receiving component should
acknowledge the new parameter value by sending a param_value
message to all communication partners. This will also ensure
that multiple GCS all have an up-to-date list of all
parameters. If the sending GCS did not receive a PARAM_VALUE
message within its timeout time, it should re-send the
PARAM_SET message.