【HACKATHON 10th ERNIE with Partners No.29】[Metax] update solve_grad_kernel_impl (#2491)

* fix

* fix

---------

Co-authored-by: metax666 <qimeng.du@metax-tech.com>

Author: co63oc

backends/metax_gpu/kernels/custom_kernel/solve_grad_kernel_register.cu

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "kernels/impl/solve_grad_kernel_impl.h"
 #include "paddle/phi/core/kernel_registry.h"
+#include "paddle/phi/kernels/impl/solve_grad_kernel_impl.h"
 #include "paddle/phi/kernels/solve_grad_kernel.h"
 
 PD_REGISTER_PLUGIN_KERNEL(