support metax and iluvatar uniform complex64 (#2138)

Author: HydrogenSulfate

backends/iluvatar_gpu/kernels/cuda_kernels/uniform_kernel_register.cc

@@ -21,4 +21,5 @@ PD_CUSTOM_KERNEL_REGISTER(uniform,
                           phi::UniformKernel,
                           float,
                           phi::dtype::float16,
-                          phi::dtype::bfloat16) {}
+                          phi::dtype::bfloat16,
+                          phi::dtype::complex<float>) {}