[ONCPUML-1451] Add matmul kernel to enable bf16 to bf16 operations via PyTorch® autocast() function

The full range of tests must be added with [MLINFSW-482] epic due to the lack of reordering kernels implemented in Acl.

Co-Authored-By: David Mansell <David.Mansell@arm.com>
Change-Id: I820d316295a1ec94fdc89c37e4144a268f914c36
Signed-off-by: Renato Arantes <renato.arantes@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/11169
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
diff --git a/utils/TypePrinter.h b/utils/TypePrinter.h
index 23e28d6..41ac118 100644
--- a/utils/TypePrinter.h
+++ b/utils/TypePrinter.h
@@ -3601,7 +3601,7 @@
 {
     os << "CpuMatMulSettings="
        << "["
-       << "fast_math=" << settings.fast_math() << "]";
+       << "fast_math=" << settings.fast_math() << ",fixed_format=" << settings.fixed_format() << "]";
 
     return os;
 }