Update prebuilt SDK to 1540531

Change-Id: Ia2f43869c228f70391a893b723ba75a2df367f6f
diff --git a/current/support/v7/appcompat/res/values/styles.xml b/current/support/v7/appcompat/res/values/styles.xml
index 1b8b53b..1c4cee8 100644
--- a/current/support/v7/appcompat/res/values/styles.xml
+++ b/current/support/v7/appcompat/res/values/styles.xml
@@ -120,6 +120,8 @@
 
     <style name="Widget.AppCompat.Spinner" parent="Base.Widget.AppCompat.Spinner" />
 
+    <style name="Widget.AppCompat.Spinner.Underlined" parent="Base.Widget.AppCompat.Spinner.Underlined" />
+
     <style name="Widget.AppCompat.Spinner.DropDown" />
 
     <style name="Widget.AppCompat.Spinner.DropDown.ActionBar" parent="Base.Widget.AppCompat.Spinner.DropDown.ActionBar" />
@@ -187,10 +189,6 @@
            parent="Base.Widget.AppCompat.AutoCompleteTextView">
     </style>
 
-    <style name="Widget.AppCompat.Light.AutoCompleteTextView"
-           parent="Base.Widget.AppCompat.Light.AutoCompleteTextView">
-    </style>
-
     <style name="Widget.AppCompat.ActivityChooserView"
            parent="Base.Widget.AppCompat.ActivityChooserView">
     </style>
@@ -207,6 +205,12 @@
 
     <style name="Widget.AppCompat.CompoundButton.Switch" parent="Base.Widget.AppCompat.CompoundButton.Switch" />
 
+    <style name="Widget.AppCompat.RatingBar" parent="Base.Widget.AppCompat.RatingBar" />
+
+    <style name="Widget.AppCompat.Button" parent="Base.Widget.AppCompat.Button" />
+
+    <style name="Widget.AppCompat.Button.Small" parent="Base.Widget.AppCompat.Button.Small" />
+
     <!-- Toolbar -->
 
     <style name="Widget.AppCompat.Toolbar" parent="Base.Widget.AppCompat.Toolbar" />
@@ -291,5 +295,6 @@
     <style name="Widget.AppCompat.Light.Spinner.DropDown.ActionBar" parent="Widget.AppCompat.Spinner.DropDown.ActionBar" />
     <style name="Widget.AppCompat.Light.ListView.DropDown" parent="Widget.AppCompat.ListView.DropDown" />
     <style name="Widget.AppCompat.Light.ListPopupWindow" parent="Widget.AppCompat.ListPopupWindow" />
+    <style name="Widget.AppCompat.Light.AutoCompleteTextView" parent="Widget.AppCompat.AutoCompleteTextView" />
 
 </resources>