fix rs docs

Change-Id: Id7253737278d5dc4ef3b6d53cd32dbac1a80103d
diff --git a/scriptc/rs_quaternion.rsh b/scriptc/rs_quaternion.rsh
index 36e6736..23945ae 100644
--- a/scriptc/rs_quaternion.rsh
+++ b/scriptc/rs_quaternion.rsh
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-/** @file rs_matrix.rsh
+/** @file rs_quaternion.rsh
  *  \brief Quaternion routines
  *
  *