disp: msm: dsi: add generic API for calculating horizontal timings

Add a generic API which calculates the horizontal timings based
on the compression type in case compression is enabled and even
for non-compression cases.

Replace the usage of the DSC macros with this generic API.

Change-Id: Ie9174c20adc51a0be7c9127529d41faa4b473b55
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>

msm/dsi/dsi_ctrl.c

@@ -913,7 +913,7 @@ static int dsi_ctrl_update_link_freqs(struct dsi_ctrl *dsi_ctrl,
 		do_div(bit_rate, dsi_transfer_time_us);
 		bit_rate = bit_rate * num_of_lanes;
 	} else {
-		h_period = DSI_H_TOTAL_DSC(timing);
+		h_period = dsi_h_total_dce(timing);
 		v_period = DSI_V_TOTAL(timing);
 		bit_rate = h_period * v_period * timing->refresh_rate * bpp;
 	}