Planning: added more conf parameters to park_and_go scenario.

modules/planning/conf/scenario/park_and_go_config.pb.txt

@@ -3,6 +3,7 @@ park_and_go_config: {
   front_obstacle_buffer: 10.0
   heading_buffer: 0.3
   min_dist_to_dest: 10.0
+  max_steering_percentage_when_cruise: 90.0
 }
 
 stage_type: PARK_AND_GO_CHECK

modules/planning/proto/planning_config.proto

@@ -185,6 +185,9 @@ message ScenarioParkAndGoConfig {
   optional double front_obstacle_buffer = 1 [default = 4.0];  // meter
   optional double heading_buffer = 2 [default = 0.5];         // rad
   optional double min_dist_to_dest = 3 [default = 25.0];      // meter
+  optional double max_steering_percentage_when_cruise = 4 [default = 90.0];
+  optional double adjust_end_pose_s_distance = 5 [default = 10.0];     // meter
+  optional double pre_curise_end_pose_s_distance = 6 [default = 2.0];  // meter
 }
 
 message ScenarioYieldSignConfig {