[Search][People] Introduce LayoutType.PEOPLE_TILE

Bug: 182361605
Test: Manual
Change-Id: I4d51175ed148b1a2514f25c39ac806b0c206a2a5
diff --git a/searchuilib/src/com/android/app/search/LayoutType.java b/searchuilib/src/com/android/app/search/LayoutType.java
index d53ba93..ab8b6e8 100644
--- a/searchuilib/src/com/android/app/search/LayoutType.java
+++ b/searchuilib/src/com/android/app/search/LayoutType.java
@@ -56,6 +56,9 @@
     // Live widget search result
     public static final String WIDGET_LIVE = "widget_live";
 
+    // Layout type used to display people tiles using shortcut info
+    public static final String PEOPLE_TILE = "people_tile";
+
     // text based header to group various layouts in low confidence section of the results.
     public static final String TEXT_HEADER = "header";