configure was failing to detect the hdf5 library with gcc that needs some hind to find where H5Fcreate is

git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@13014 c92efa57-630b-4861-b058-cf58834340f0

install/configure

@@ -12310,7 +12310,7 @@ return H5Fcreate ();
   return 0;
 }
 _ACEOF
-for ac_lib in '' hdf5_fortran; do
+for ac_lib in '' hdf5 hdf5_fortran; do
   if test -z "$ac_lib"; then
     ac_res="none required"
   else