rpi: Fix logging of buffer swaps for the EGL case
rpi: Fix logging of buffer swaps for the EGL case

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