gallium/tests/trivial: updates for util_draw_vertex_buffer changes

Fixes build error with configure option --enable-gallium-tests
introduced in e73bf3b805

Reviewed-by: Marek Olšák <maraeo@gmail.com>

src/gallium/tests/trivial/quad-tex.c

@@ -329,7 +329,7 @@ static void draw(struct program *p)
 	cso_set_vertex_elements(p->cso, 2, p->velem);
 
 	util_draw_vertex_buffer(p->pipe, p->cso,
-	                        p->vbuf, 0,
+	                        p->vbuf, 0, 0,
 	                        PIPE_PRIM_QUADS,
 	                        4,  /* verts */
 	                        2); /* attribs/vert */

src/gallium/tests/trivial/tri.c

@@ -262,7 +262,7 @@ static void draw(struct program *p)
 	cso_set_vertex_elements(p->cso, 2, p->velem);
 
 	util_draw_vertex_buffer(p->pipe, p->cso,
-	                        p->vbuf, 0,
+	                        p->vbuf, 0, 0,
 	                        PIPE_PRIM_TRIANGLES,
 	                        3,  /* verts */
 	                        2); /* attribs/vert */