[Flashinfer] Integrate flashinfer router gemm for sm103 (#23285)

python/sglang/srt/models/deepseek_v2.py

@@ -335,7 +335,7 @@ class MoEGate(nn.Module):
                 and (self.weight.shape[0] == 256 or self.weight.shape[0] == 384)
                 and _device_sm >= 90
             ):
-                if _device_sm == 100 and self.weight.shape[0] == 256:
+                if _device_sm in [100, 103] and self.weight.shape[0] == 256:
                     # router gemm output float32
                     logits = torch.empty(
                         hidden_states.shape[0],