sna: Enable coordinate transforms for native CRTC rotation

Otherwise X tells Clients that the cursor is still in the unrotated
location when it appears rotated on the display.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

src/sna/sna_display.c

@@ -1591,7 +1591,7 @@ static void sna_crtc_randr(xf86CrtcPtr crtc)
 #endif
 		crtc->transform_in_use = TRUE;
 	} else
-		crtc->transform_in_use = FALSE;
+		crtc->transform_in_use = sna_crtc->rotation != RR_Rotate_0;
 
 	crtc->crtc_to_framebuffer = crtc_to_fb;
 	crtc->f_crtc_to_framebuffer = f_crtc_to_fb;