[Quantum chips] use minHeight for autocomplete dropdown

Use minheight instead of actual height so it takes text
size into account.

b/16824867

Change-Id: I935195eca0fb69d0a3b52c803bb53fef0e411e26
diff --git a/res/layout/chips_autocomplete_recipient_dropdown_item.xml b/res/layout/chips_autocomplete_recipient_dropdown_item.xml
index 9b9ef7a..502a3ce 100644
--- a/res/layout/chips_autocomplete_recipient_dropdown_item.xml
+++ b/res/layout/chips_autocomplete_recipient_dropdown_item.xml
@@ -16,7 +16,8 @@
 -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="@dimen/chip_dropdown_height"
+    android:layout_height="wrap_content"
+    android:minHeight="@dimen/chip_dropdown_height"
     android:background="@drawable/chips_dropdown_background"
     style="@style/ChipAutocompleteWrapperStyle">