6352 Updated DC locator for SMB and idmap Portions contributed by: Matt Barden <Matt.Barden@nexenta.com> Portions contributed by: Kevin Crowe <kevin.crowe@nexenta.com> Portions contributed by: Alek Pinchuk <alek@nexenta.com> Reviewed by: Bayard Bell <bayard.bell@nexenta.com> Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com> Reviewed by: Rick McNeal <rick.mcneal@nexenta.com> Reviewed by: Kevin Crowe <kevin.crowe@nexenta.com> Reviewed by: Tony Nguyen <tony.nguyen@nexenta.com> Approved by: Robert Mustacchi <rm@joyent.com>