wlgen.rta: Fix handling of floating "run" rtapp phase setting
wlgen.rta: Fix handling of floating "run" rtapp phase setting

rtapp fails to handle floating values properly, so make sure we always feed an
int:
https://github.com/scheduler-tools/rt-app/issues/82

credp/lisa,credp/lisa,ARM-software/lisa,ARM-software/lisa,ARM-software/lisa,ARM-software/lisa,credp/lisa,credp/lisa