Add MapScaleMode to Navigation branch (#622)

* Add MapScaleMode to Navigation branch


Signed-off-by: Wonsuk Lee <wonsuk.lee@etri.re.kr>

spec/Cabin/Infotainment.vspec

@@ -120,6 +120,17 @@ Navigation.GuidanceVoice:
   description: Navigation guidance state that was selected.
   comment: ETC indicates a voice alternative not covered by the explicitly listed alternatives.
 
+Navigation.Map:
+  type: branch
+  description: All map actions
+
+Navigation.Map.IsAutoScaleModeUsed:
+  datatype: boolean
+  type: actuator
+  description: Used to select auto-scaling mode. This feature dynamically adjusts the zoom level of the map to provide an optimal view based on the current speed of the vehicle
+  comment: If true, then auto-scaling mode is used.
+           If false, then manual-scaling mode is used.
+
 HMI:
   type: branch
   description: HMI related signals