tools: re-add support for opening /dev/input/event nodes
tools: re-add support for opening /dev/input/event nodes

Signed-off-by: Peter Hutterer <b9c50af7afa7642f6f854434cda9ffe54ece8b85@who-t.net>

NoXPhasma/libratbag,bentiss/libratbag-old,libratbag/libratbag,cvuchener/libratbag,libratbag/libratbag,whot/libratbag-old,whot/libratbag,bentiss/libratbag-old,bentiss/libratbag-old,cvuchener/libratbag,NoXPhasma/libratbag,whot/libratbag-old,libratbag/libratbag,whot/libratbag,NoXPhasma/libratbag,whot/libratbag-old,cvuchener/libratbag,whot/libratbag