fix compilation bug

Author: dzzz2001

source/source_pw/module_pwdft/forces.cpp

@@ -418,7 +418,7 @@ void Forces<FPTYPE, Device>::cal_force_loc(const UnitCell& ucell,
 
     if(this->device == base_device::GpuDevice)
     {
-        hamilt::cal_force_loc_op<FPTYPE, base_device::DEVICE_GPU>()(
+        hamilt::cal_force_loc_op<FPTYPE, Device>()(
             this->nat,
             rho_basis->npw,
             ucell.tpiba * ucell.omega,

source/source_pw/module_pwdft/kernels/force_op.h

@@ -164,6 +164,21 @@ struct cal_force_loc_op{
         FPTYPE* forcelc);
 };
 
+template <typename FPTYPE, typename Device>
+struct cal_force_loc_op{
+    void operator()(
+        const int nat,
+        const int npw,
+        const FPTYPE tpiba_omega,
+        const int* iat2it,
+        const int* ig2igg,
+        const FPTYPE* gcar,
+        const FPTYPE* tau,
+        const std::complex<FPTYPE>* aux,
+        const FPTYPE* vloc,
+        const int vloc_nr,
+        FPTYPE* forcelc) {};
+};
 #if __CUDA || __UT_USE_CUDA || __ROCM || __UT_USE_ROCM
 template <typename FPTYPE>
 struct cal_vkb1_nl_op<FPTYPE, base_device::DEVICE_GPU>