change the headfile (#2170)

Co-authored-by: Tao Luo <luotao02@baidu.com>

Author: Patrisam

backends/metax_gpu/kernels/cuda_kernels/gelu_grad_kernel_register.cu

@@ -16,7 +16,7 @@
 #include "paddle/phi/core/kernel_registry.h"
 #include "paddle/phi/kernels/gelu_kernel.h"
 #include "paddle/phi/kernels/gpu/gelu_funcs.h"
-#include "paddle/phi/kernels/gpu/gelu_grad_kernel.cu" // NOLINT
+#include "paddle/phi/kernels/gelu_grad_kernel.h"
 // clang-format on
 PD_CUSTOM_KERNEL_REGISTER(gelu_grad,
                           metax_gpu,