slapos_erp5: Add erp5_oauth_[facebook|google]_login back

  This helps to preserve backward compatibility with existing sites, that would have broken documents by the absence of the portal types.
5 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS-Master.UnitTest-Master

01:48:39

passed SlapOS.Eggs.UnitTest-Master.Python2

00:29:50

failed SlapOS.Eggs.UnitTest-Master.Python3

00:16:36

passed SlapOS.Eggs.UnitTest-Master.Python2

00:32:50

failed SlapOS.Eggs.UnitTest-Master.Python3

00:19:51