use ev_init for kspace

src/GPU/pppm_gpu.cpp

@@ -199,9 +199,7 @@ void PPPMGPU::compute(int eflag, int vflag)
   // set energy/virial flags
   // invoke allocate_peratom() if needed for first time
 
-  if (eflag || vflag) ev_setup(eflag,vflag);
-  else evflag = evflag_atom = eflag_global = vflag_global =
-        eflag_atom = vflag_atom = 0;
+  ev_init(eflag,vflag);
 
   // If need per-atom energies/virials, allocate per-atom arrays here
   // so that particle map on host can be done concurrently with GPU calculations