* config.gcc (arm*-*-rtems*): Include crtinit.o and crtfini.o as
        extra multilib parts like arm-elf.
        (i960-*-coff*, i960-*-rtems): Should not use collect2.
        (m68020-*-elf*, m68k-*-elf*, m68k-*-rtems*): Include crtinit.o and
        crtfini.o as extra multilib parts.

From-SVN: r44327