Add device type to falsing data for normalization purposes.

Bug: 117600098
Change-Id: If921d806f09650c4a2366826e23f0159ff0daa09
Test: Manual.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/touch_analytics.proto b/packages/SystemUI/src/com/android/systemui/statusbar/phone/touch_analytics.proto
index 50fd52a..cfb633d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/touch_analytics.proto
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/touch_analytics.proto
@@ -134,4 +134,6 @@
     optional int32 touchAreaHeight = 10;
     optional Type type = 11;
     repeated PhoneEvent phoneEvents = 12;
+
+    optional string device_id = 13;
 }
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