COMPMID-2325: (Nightly) CLDeconvolution mismatches

Change-Id: Ie46a6a0488c013a0990e234e43153c2a09cd06d0
Signed-off-by: giuros01 <giuseppe.rossini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1113
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/tests/validation/CL/DeconvolutionLayer.cpp b/tests/validation/CL/DeconvolutionLayer.cpp
index 60be0b6..db93beb 100644
--- a/tests/validation/CL/DeconvolutionLayer.cpp
+++ b/tests/validation/CL/DeconvolutionLayer.cpp
@@ -220,7 +220,7 @@
                                                                                                                   data_layouts_dataset))
 {
     // Validate output
-    validate(CLAccessor(_target), _reference, tolerance_fp32);
+    validate(CLAccessor(_target), _reference, tolerance_f16);
 }
 TEST_SUITE_END() // W2x2