Add BF16 support to reference model

* Upgrade Eigen to 3.4.0 (for bfloat16 support) and add work-
  arounds for reduce.any() and reduce.all() bugs (introduced
  between 3.3.7 and 3.4.0)
* Truncation to bfloat16 now performed in eval() methods

Signed-off-by: James Ward <james.ward@arm.com>
Signed-off-by: Jeremy Johnson <jeremy.johnson@arm.com>
Change-Id: If5f5c988d76d3d30790acf3b97081726b89205fe

2 files changed, 0 insertions, 0 deletions

diff --git a/thirdparty/eigen b/thirdparty/eigen
-Subproject 21ae2afd4edaa1b69782c67a54182d34efe43f9
+Subproject 3147391d946bb4b6c68edd901f2add6ac1f31f8
diff --git a/thirdparty/serialization_lib b/thirdparty/serialization_lib
-Subproject e1072a9ed871fd474e7b09b7a74ae7be5f0a6f7
+Subproject 34a627959a61b4eccbeea4400cf9684debb331d