COMPMID-1518: Add support for GEMM3D in CLGEMMLowpMatrixMultiplyCore

Change-Id: Ib14ac821ee5d4aff80bd602cd3e76e7018abb5e6
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/150268
Tested-by: bsgcomp <bsgcomp@arm.com>
Reviewed-by: Isabella Gottardi <isabella.gottardi@arm.com>
Reviewed-by: Michele DiGiorgio <michele.digiorgio@arm.com>
diff --git a/tests/validation/fixtures/GEMMLowpAssemblyFixture.h b/tests/validation/fixtures/GEMMLowpAssemblyFixture.h
index d6b94a1..519932f 100644
--- a/tests/validation/fixtures/GEMMLowpAssemblyFixture.h
+++ b/tests/validation/fixtures/GEMMLowpAssemblyFixture.h
@@ -128,7 +128,7 @@
             fill(b, 1, 0, 255);
         }
 
-        return reference::gemmlowp<int32_t, T2>(a, b);
+        return reference::gemmlowp<int32_t, T2>(a, b, shape_c);
     }
 
     TensorType            _target{};