tests: Fix event-test
tests: Fix event-test

notify_motion() now receives coordinates in wl_fixed_t but the test was
still passing integers.

eyolfson/weston,krezovic/weston,giucam/weston,Gnurou/weston,Tarnyko/weston-xdg_surface_present,Fantu/compositor-spice,Gnurou/weston,kwm81/weston,udoprog/weston,xorgy/weston,sir-murray/weston,eyolfson/weston,sir-murray/weston,xorgy/weston,giucam/weston,mchalupa/weston,Fantu/compositor-spice,jonnylamb/weston,Fantu/compositor-spice,jonnylamb/weston,krezovic/weston,Tarnyko/weston-xdg_surface_present,kwm81/weston,udoprog/weston,mchalupa/weston