Removing center vertical from folder gravity.

Using center vertical alogn with a fixed height, overrides
the custom drawable padding and divides the available space
proportionally between padding and drawable padding

Change-Id: I4523543ab3007ef40eac69d878d2afbca13b483a
diff --git a/res/values/styles.xml b/res/values/styles.xml
index ecc11b0..87a5629 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -75,7 +75,7 @@
         <item name="android:textColor">@color/quantum_panel_text_color</item>
         <item name="android:shadowRadius">0</item>
         <item name="android:textSize">@dimen/folder_child_text_size</item>
-        <item name="android:gravity">center</item>
+        <item name="android:gravity">center_horizontal</item>
         <item name="android:includeFontPadding">false</item>
         <item name="customShadows">false</item>
         <item name="iconDisplay">folder</item>