move comp_x pixmap dirty setting to post_resize idler
move comp_x pixmap dirty setting to post_resize idler

this fixes a rare race condition which can only be triggered by the tiling module

fix T993

tizenorg/platform.upstream.enlightenment,tasn/enlightenment,FlorentRevest/Enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,rvandegrift/e,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,tasn/enlightenment,rvandegrift/e,FlorentRevest/Enlightenment,rvandegrift/e