patch to add tm-vxworks.h

[Stan Shebs]

   Date: Wed, 19 May 1999 14:30:45 -0700
   From: "J.T. Conklin" <jtc@RedBackNetworks.com>

   The enclosed patch adds config/tm-vxworks.h, a target specific config
   header for definitions common to all vxworks targets.  In the current
   gdb, that is only GDBINIT_FILENAME and DEFAULT_PROMPT, but there will
   likely be more when changes from WRS' vxgdb are folded in.

Thanks very much!  I've pasted this into the repository.

								Stan