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_drm.h

@@ -174,10 +174,9 @@ void dsi_conn_set_submode_blob_info(struct drm_connector *conn,
 
 /**
  * dsi_conn_get_qsync_min_fps() - get qsync min fps for given fps
- * @display:            Handle to display.
  * @conn_state:         Pointer to drm_connector_state structure
  *
  * Return: Qsync min fps rate or -ve error code.
  */
-int dsi_conn_get_qsync_min_fps(void *dsi_display, struct drm_connector_state *conn_state);
+int dsi_conn_get_qsync_min_fps(struct drm_connector_state *conn_state);
 #endif /* _DSI_DRM_H_ */