[Minor][Models] Pass partial_rotary_factor parameter to rope (#17266)

Signed-off-by: evian <eviantai@u.nus.edu>
Co-authored-by: evian <eviantai@u.nus.edu>

vllm/model_executor/models/persimmon.py

@@ -115,9 +115,10 @@ class PersimmonAttention(nn.Module):
 
         self.rotary_emb = get_rope(
             self.head_dim,
-            rotary_dim=int(self.partial_rotary_factor * self.head_dim),
+            rotary_dim=self.head_dim,
             max_position=self.max_position_embeddings,
             base=self.rope_theta,
+            partial_rotary_factor=self.partial_rotary_factor,
         )
         self.scaling = self.head_dim**-0.5
         self.attn = Attention(self.num_heads,