drm/armada: make variant a CRTC thing

Move the variant pointer into the armada_crtc structure, and update for
the resulting changes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/gpu/drm/armada/armada_510.c b/drivers/gpu/drm/armada/armada_510.c
index a9dabca..1bcf1a8 100644
--- a/drivers/gpu/drm/armada/armada_510.c
+++ b/drivers/gpu/drm/armada/armada_510.c
@@ -79,6 +79,6 @@
 const struct armada_variant armada510_ops = {
 	.has_spu_adv_reg = true,
 	.spu_adv_reg = ADV_HWC32ENABLE | ADV_HWC32ARGB | ADV_HWC32BLEND,
-	.crtc_init = armada510_crtc_init,
-	.crtc_compute_clock = armada510_crtc_compute_clock,
+	.init = armada510_crtc_init,
+	.compute_clock = armada510_crtc_compute_clock,
 };