disp: msm: dsi: add qsync min fps val in dsi display mode priv info

In the current code for finding the qsync min fps for a
mode, entire mode list is iterated which involves acquiring
dsi display_lock. During conn tx debugfs commands, if
qsync min fps is required, we try to acquire dsi
display_lock twice which results in hang state. This change
adds qsync min fps value in dsi_display_mode_priv_info
struct in order to get the qsync fps from the
msm_display_mode present in connector state instead of
looping through all the modes to find the mode qsync fps.

Change-Id: Ifded40d1f12462bb50fc7bdafb746ae5b8d9512a
Signed-off-by: Yashwanth <yvulapu@codeaurora.org>

msm/dsi/dsi_defs.h

@@ -611,6 +611,7 @@ struct dsi_host_config {
  * @mdp_transfer_time_us:   Specifies the mdp transfer time for command mode
  *                          panels in microseconds.
  * @dsi_transfer_time_us: Specifies the dsi transfer time for cmd panels.
+ * @qsync_min_fps:        Qsync min fps value for the mode
  * @clk_rate_hz:          DSI bit clock per lane in hz.
  * @min_dsi_clk_hz:       Min dsi clk per lane to transfer frame in vsync time.
  * @bit_clk_list:         List of dynamic bit clock rates supported.
@@ -636,6 +637,7 @@ struct dsi_display_mode_priv_info {
 	u32 panel_prefill_lines;
 	u32 mdp_transfer_time_us;
 	u32 dsi_transfer_time_us;
+	u32 qsync_min_fps;
 	u64 clk_rate_hz;
 	u64 min_dsi_clk_hz;
 	struct msm_dyn_clk_list bit_clk_list;