compositor: Call wlsc_buffer_attach() after setting es->width
compositor: Call wlsc_buffer_attach() after setting es->width

Otherwise we end up with a 0 pitch.

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