Tweak layouts to make support UI look better.

Fixes: 30087623

- Removed some padding and hide empty textviews.

Change-Id: Id8476aa3870d796c5f5a34c2f3fa6db34918691b

res/layout/support_offline_escalation_options.xml

@@ -64,6 +64,5 @@
         style="@style/SupportSecondaryButton"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_marginBottom="16dp"
         android:minHeight="48dp"/>
 </LinearLayout>

src/com/android/settings/dashboard/SupportItemAdapter.java

@@ -290,11 +290,13 @@ public final class SupportItemAdapter extends RecyclerView.Adapter<SupportItemAd
         }
         if (holder.summary1View != null) {
             holder.summary1View.setText(data.summary1);
-            holder.summary1View.setVisibility(mHasInternet ? View.VISIBLE : View.GONE);
+            holder.summary1View.setVisibility(mHasInternet && !TextUtils.isEmpty(data.summary1)
+                    ? View.VISIBLE : View.GONE);
         }
         if (holder.summary2View != null) {
             holder.summary2View.setText(data.summary2);
-            holder.summary2View.setVisibility(mHasInternet ? View.VISIBLE : View.GONE);
+            holder.summary2View.setVisibility(mHasInternet && !TextUtils.isEmpty(data.summary2)
+                    ? View.VISIBLE : View.GONE);
         }
     }