Made pdv login activity scrollable for horiz orientation

astrid/res/layout/producteev_login_activity.xml

@@ -1,10 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
+<ScrollView
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="fill_parent"
   android:layout_height="fill_parent"
-  android:orientation="vertical"
   android:background="@drawable/pdv_body">
+  <LinearLayout
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
     <ImageView
       android:layout_width="fill_parent"
       android:layout_height="wrap_content"
@@ -100,3 +103,4 @@
       android:linksClickable="true"
       android:text="@string/producteev_PLA_terms" />
   </LinearLayout>
+</ScrollView>