add llama3.1 models to supported list (openvinotoolkit#877)

Author: dtrawins

tests/python_tests/models/real_models

@@ -79,6 +79,8 @@ meta-llama/CodeLlama-7b-hf
 meta-llama/Llama-2-7b-chat-hf
 meta-llama/Llama-2-7b-hf
 meta-llama/Meta-Llama-3-8B-Instruct
+meta-llama/Meta-Llama-3.1-8B
+meta-llama/Meta-Llama-3.1-8B-Instruct
 microsoft/DialoGPT-large
 microsoft/DialoGPT-medium
 microsoft/Orca-2-7b