import helpers from phi3 if available

Author: eaidova

optimum/exporters/openvino/model_patcher.py

@@ -971,7 +971,11 @@ def _phi3_self_attn_sdpa_forward(
             use_cache=use_cache,
         )
 
-    from transformers.models.llama.modeling_llama import apply_rotary_pos_emb, repeat_kv
+    # TO DO: remove llama imports when transformers with phi3 support will be released
+    try:
+        from transformers.models.phi3.modelling_phi3 import apply_rotary_pos_emb, repeat_kv
+    except ImportError:
+        from transformers.models.llama.modeling_llama import apply_rotary_pos_emb, repeat_kv
 
     bsz, q_len, _ = hidden_states.size()