Fix layout

Children of ScrollViews should specify a wrap_content layout_height,
according to AndroidLint

Change-Id: I4f972535f0df6bda1ba48082b812ce80fb5cfdcc

java/res/layout/research_feedback_fragment_layout.xml

@@ -21,7 +21,7 @@
 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android">
     <LinearLayout
          android:layout_width="match_parent"
-         android:layout_height="match_parent"
+         android:layout_height="wrap_content"
          android:layout_marginStart="8dip"
          android:layout_marginEnd="8dip"
          android:orientation="vertical">