msm7627a: Pass clock rate value to mdp clock

Set the right mdp clock rate during panel init code &
use the same during mdp clock initialization.

Change-Id: I492ea5299d3a6619c4ad7502ec4386d7b7f1ae14
diff --git a/dev/panel/msm/mipi_nt35510_cmd_wvga.c b/dev/panel/msm/mipi_nt35510_cmd_wvga.c
index 8c0b3cf..63e4c04 100644
--- a/dev/panel/msm/mipi_nt35510_cmd_wvga.c
+++ b/dev/panel/msm/mipi_nt35510_cmd_wvga.c
@@ -309,6 +309,7 @@
 	pinfo->type = MIPI_CMD_PANEL;
 	pinfo->wait_cycle = 0;
 	pinfo->bpp = 24;
+	pinfo->clk_rate = 499000000;
 
 	pinfo->mipi.mode = DSI_CMD_MODE;
 	pinfo->mipi.traffic_mode = 0;