Hide array allocation

Not done for feature complete

Change-Id: I79c8da2c7e64d6feb660c9652688f971535c1f92
diff --git a/rs/java/android/renderscript/Type.java b/rs/java/android/renderscript/Type.java
index cc9b58b..dc23785 100644
--- a/rs/java/android/renderscript/Type.java
+++ b/rs/java/android/renderscript/Type.java
@@ -150,6 +150,7 @@
     }
 
     /**
+     * @hide
       * Return the dimension of the specified array.
       *
       * @param arrayNum  The array dimension to query
@@ -169,6 +170,7 @@
     }
 
     /**
+     * @hide
       * Return the number of array dimensions.
       *
       * @return int
@@ -382,6 +384,7 @@
         }
 
         /**
+         * @hide
          * Adds an array dimension to the builder
          *
          * @param dim