[CPU] Prohibit fc avx2_vnni_2 decompression for bf16 input #27395

Job	Run time
Smart_CI	21s
Build	13m 6s
Conformance (OP)	17m 12s
Conformance (API)	2m 31s
GPU_Stub	0s
NVIDIA plugin	0s
ONNX Runtime Integration	0s
OpenVINO tokenizers extension	0s
Debian Packages / Debian Packages	2m 31s
C++ unit tests / C++ unit tests	1m 22s
CPU functional tests / CPU functional tests	18m 22s
OpenVINO JS API / OpenVINO JS API	55s
ONNX Models Tests / ONNX Models tests	24m 50s
Samples / Samples	7m 34s
Python unit tests	0s
TensorFlow Models tests	0s
PyTorch Models tests	0s
TensorFlow Hugging Face Models tests	0s
TensorFlow TF Hub Models tests	0s
ci/gha_overall_status	1s
	1h 28m 45s

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