COMPMID-438: Add support for floating point Min-Max Location layer.

Change-Id: I84ae564a40fc7320a6f94a84d53906ba51404f51
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/79797
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>
diff --git a/tests/validation/Reference.h b/tests/validation/Reference.h
index 778e7b0..eeaa55c 100644
--- a/tests/validation/Reference.h
+++ b/tests/validation/Reference.h
@@ -72,7 +72,7 @@
      *
      * @return Computed minimum, maximum values and their locations.
      */
-    static void compute_reference_min_max_location(const TensorShape &shape, DataType dt_in, int32_t &min, int32_t &max, IArray<Coordinates2D> &min_loc, IArray<Coordinates2D> &max_loc,
+    static void compute_reference_min_max_location(const TensorShape &shape, DataType dt_in, void *min, void *max, IArray<Coordinates2D> &min_loc, IArray<Coordinates2D> &max_loc,
                                                    uint32_t &min_count,
                                                    uint32_t &max_count);
     /** Compute reference mean and standard deviation.