DFTU: Use ScalapackConnector instead of direct math library calls (#7196)

Author: lanshuyue

source/source_lcao/module_dftu/dftu_hamilt.cpp

@@ -50,11 +50,11 @@ void Plus_U::cal_eff_pot_mat_complex(const int ik,
 	}
 
 #ifdef __MPI
-  	pztranc_(&PARAM.globalv.nlocal, &PARAM.globalv.nlocal, 
-            &one, 
-            &VU[0], &one_int, &one_int, this->paraV->desc, 
-            &one, 
-            eff_pot, &one_int, &one_int, this->paraV->desc);
+   	ScalapackConnector::tranu(PARAM.globalv.nlocal, PARAM.globalv.nlocal, 
+            one, 
+            &VU[0], one_int, one_int, this->paraV->desc, 
+            one, 
+            eff_pot, one_int, one_int, this->paraV->desc);
 #endif
 
 	ModuleBase::timer::end("Plus_U", "cal_eff_pot_c");