ratbagd: clean up ratbag devices on SIGINT
ratbagd: clean up ratbag devices on SIGINT

Or valgrind complains a lot.

Signed-off-by: Benjamin Tissoires <7a0e50e3f6a0939db82b6a8a423c08a163896f41@gmail.com>

whot/libratbag,libratbag/libratbag,whot/libratbag,libratbag/libratbag,libratbag/libratbag,whot/libratbag