ecore-drm2: Store plane src values on assign

As we will need the plane state source values when we do an atomic
commit, we can store them when plane_assign is called as we already
have the FBO available.

Signed-off-by: Chris Michael <cp.michael@samsung.com>

src/lib/ecore_drm2/ecore_drm2_plane.c

@@ -91,6 +91,14 @@ out:
    plane = calloc(1, sizeof(Ecore_Drm2_Plane));
    if (!plane) return NULL;
 
+   pstate->cid.value = output->crtc_id;
+   pstate->fid.value = fb->id;
+
+   pstate->sx.value = 0;
+   pstate->sy.value = 0;
+   pstate->sw.value = fb->w << 16;
+   pstate->sh.value = fb->h << 16;
+
    plane->type = pstate->type.value;
    plane->qfb = fb;
    plane->state = pstate;