Garmin: Set icon to a round watch

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/garmin/GarminCoordinator.java

@@ -69,6 +69,16 @@ public abstract class GarminCoordinator extends AbstractBLEDeviceCoordinator {
         return "Garmin";
     }
 
+    @Override
+    public int getDefaultIconResource() {
+        return R.drawable.ic_device_zetime;
+    }
+
+    @Override
+    public int getDisabledIconResource() {
+        return R.drawable.ic_device_zetime_disabled;
+    }
+
     @Override
     public EnumSet<ServiceDeviceSupport.Flags> getInitialFlags() {
         // We should not need busy checking for garmin devices