Fix h_crop and w_crop device

Fix `Placeholder storage has not been allocated on MPS device!` when running with `torch==2.4.0` and `device=mps`.

image_embedding_phi3_v.py

@@ -269,7 +269,7 @@ class Phi3ImageEmbedding(nn.Module):
         """
         N, L, C = image_features.shape
         assert L == 24 * 24 and C == 1024 and N % (h_crop * w_crop) == 0
-        num_images = N // (h_crop * w_crop)
+        num_images = N // (int(h_crop) * int(w_crop))
         H = int(L**0.5)
         image_features_hd = (
             image_features.reshape(N, H, H, C)  # N, 24, 24, 1024