Fix the order of configuration calls
Fix the order of configuration calls

Since _SetDrbdHelper calls methods on self.cfg, it's necessary to update
the configuration before it is called.

Signed-off-by: Petr Pudlak <9d19625f8ee825a2c398462ed335cbcf98f79c32@google.com>
Reviewed-by: Helga Velroyen <2d0126b1ec6f9ec5cbec4a7012aa14faeaef10f5@google.com>
Reviewed-by: Hrvoje Ribicic <be5828fca31f89218048bec4189e30a581aa65da@google.com>

ganeti/ganeti,ganeti/ganeti,dimara/ganeti,andir/ganeti,andir/ganeti,andir/ganeti,ganeti-github-testing/ganeti-test-1,leshchevds/ganeti,yiannist/ganeti,mbakke/ganeti,ganeti/ganeti,bitemyapp/ganeti,apyrgio/ganeti,leshchevds/ganeti,mbakke/ganeti,dimara/ganeti,yiannist/ganeti,apyrgio/ganeti,mbakke/ganeti,onponomarev/ganeti,yiannist/ganeti,bitemyapp/ganeti,leshchevds/ganeti,grnet/snf-ganeti,grnet/snf-ganeti,onponomarev/ganeti,ganeti-github-testing/ganeti-test-1