PC386 BSP enhancements from Aleksey Romanov (Quality Quorum

<qqi@world.std.com>).   Unfortunately after merging these,
the pc386 will not boot using grub for for.  It still does not
work using netboot for me.  Here is his summary of changes:


  rtems/c/src/lib/libbsp/i386/pc386/Makefile.in
  	Added support for new sub-directory

  rtems/c/src/lib/libbsp/i386/pc386/bsp_specs
  	Made possible to build COFF image

  rtems/c/src/lib/libbsp/i386/pc386/console/console.c
  	Added support for serial consoles, selectable by patching
  	binary image, added __assert(), use _IBMPC_inch_sleep()
  	instaed of _IMBPC_inch()

  rtems/c/src/lib/libbsp/i386/pc386/console/inch.c
  	Added _IMBPC_inch_sleep()

  rtems/c/src/lib/libbsp/i386/pc386/console/outch.c
  	Oops - just formatting

  rtems/c/src/lib/libbsp/i386/pc386/include/Makefile.in
  	Added support for new files

  rtems/c/src/lib/libbsp/i386/pc386/include/bsp.h
  	Added support for new features

  rtems/c/src/lib/libbsp/i386/pc386/include/pc386uart.h
  	New file: definitions for serial ports

  rtems/c/src/lib/libbsp/i386/pc386/include/pcibios.h
  	New file: definitions for PCI BIOS

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/Makefile.in
  	New file: makefile in new directory

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/i386-stub-glue.c
  	New file: i386-stub interface

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/i386-stub.c
  	New file: i386-stub itself

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/pc386uart.c
  	New file: serial ports

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/pcibios.c
  	New file: PCI BIOS support

  rtems/c/src/lib/libbsp/i386/pc386/start/start.s
  	Commented out DEBUG_EARLY stuff, everything is working fine

  rtems/c/src/lib/libbsp/i386/pc386/start/start16.s
  	Cleaned up

  rtems/c/src/lib/libbsp/i386/pc386/startup/bspstart.c
  	Added call to console_resereve_resources

  rtems/c/src/lib/libbsp/i386/pc386/startup/exit.c
  	Added support for serial console

  rtems/c/src/lib/libbsp/i386/pc386/startup/ldsegs.s
  	Fixed typo in comments

  rtems/c/src/lib/libbsp/i386/pc386/tools/Makefile.in
  	Changed to reflect cnages in code

  rtems/c/src/lib/libbsp/i386/pc386/tools/bin2boot.c
  	Trivialized, problem - I do not know how to make patch
  	remove obsolete files - there are a lot of them there

  rtems/c/src/lib/libbsp/i386/pc386/tools/binpatch.c
  	New file: utility to do binary patches

  rtems/c/src/lib/libbsp/i386/pc386/wrapup/Makefile.in
  	Added support for new directory

  rtems/make/custom/pc386.cfg
  	Add COFF image building

make/custom/pc386.cfg

@@ -102,8 +102,12 @@ define make-exe
 	$(NM) -g -n $(basename $@).obj > $(basename $@).num
 	$(SIZE) $(basename $@).obj
         $(INSTALL_VARIANT) -m 555 $(basename $@).bt ${PROJECT_RELEASE}/BootImgs
+	$(CC) $(CFLAGS) $(CFLAGS_LD) -Wl,-Ttext,$(RELOCADDR) \
+	    -o $(basename $@).coff $(LINK_OBJS) $(LINK_LIBS)
 endef
 endif
 
 # Miscellaneous additions go here
 
+
+