configure.in (vax-*-openbsd): Change to new style configuration, add collect2/float_format information.

        * configure.in (vax-*-openbsd):  Change to new style configuration,
        add collect2/float_format information.
        * configure:  Rebuilt.
        * config/vax/openbsd1.h:  New.
        * config/vax/openbsd.h:  New.
        * config/vax/t-openbsd:  New.

From-SVN: r35079