update get_ngk usage

Author: haozhihan

source/module_hamilt_general/operator.cpp

@@ -73,7 +73,7 @@ typename Operator<T, Device>::hpsi_info Operator<T, Device>::hPsi(hpsi_info& inp
             op->act(psi_wrapper, *this->hpsi, nbands);
             break;
         default:
-            op->act(nbands, psi_input->get_nbasis(), psi_input->npol, tmpsi_in, this->hpsi->get_pointer(), psi_input->get_ngk(op->ik), is_first_node);
+            op->act(nbands, psi_input->get_nbasis(), psi_input->npol, tmpsi_in, this->hpsi->get_pointer(), psi_input->get_current_nbas(), is_first_node);
             break;
         }
         };

source/module_hamilt_pw/hamilt_pwdft/operator_pw/velocity_pw.cpp

@@ -47,7 +47,7 @@ void Velocity::act
 ) const
 {
     ModuleBase::timer::tick("Operator", "Velocity");
-    const int npw = psi_in->get_ngk(this->ik);
+    const int npw = psi_in->get_current_nbas();
     const int max_npw = psi_in->get_nbasis() / psi_in->npol;
     const int npol = psi_in->npol;
     const std::complex<double>* tmpsi_in = psi0;

source/module_psi/psi.cpp

@@ -106,7 +106,7 @@ Psi<T, Device>::Psi(T* psi_pointer, const int nk_in, const int nbd_in, const int
 }
 
 template <typename T, typename Device>
-Psi<T, Device>::Psi(const Psi& psi_in, const int nk_in, int nband_in)
+Psi<T, Device>::Psi(const Psi& psi_in, const int nk_in, const int nband_in)
 {
     assert(nk_in <= psi_in.get_nk() && nk_in > 0);
     assert(nband_in <= psi_in.get_nbands() && nband_in > 0);