Move action parameter from data to fixed api format to be able to select events based on this parameter

This is https://github.com/ff-kbu/ath9k-watchdog/

 with
some minor modifications. Our code doesn't submit the
complete dmesg.

Signed-off-by: Tim Niemeyer <tim.niemeyer@mastersword.de>

Got answer concerning building package from git https://forum.openwrt.org/viewtopic.php?pid=194986#p194986

Add libwlocate and lwtrace packages. Both packages use the openwlanmap to estimate the position of a router