disp: msm: dsi: update DSI PHY configuration to support splitlink

Change updates DSI PHY programming sequence for splitlink configuration.

Change-Id: I708cf83717c6f640c918d41cc122794a10f979ba
Signed-off-by: Vara Reddy <varar@codeaurora.org>

msm/dsi/dsi_defs.h

@@ -448,12 +448,14 @@ struct dsi_mode_info {
  * @num_sublinks:     Number of sublinks.
  * @lanes_per_sublink:   Number of lanes per sublink.
  * @panel_mode: Specifies cmd or video mode.
+ * @lanes_enabled: Specifies what all lanes are enabled.
  */
 struct dsi_split_link_config {
 	bool enabled;
 	bool sublink_swap;
 	u32 num_sublinks;
 	u32 lanes_per_sublink;
+	u8 lanes_enabled;
 	enum dsi_op_mode panel_mode;
 };