* nlm/Makefile.in: Add rule for .S.o.

	* nlm/Makefile.in:  Add rule for .S.o.
	* nlm/aio.h:  Protect from multiple inclusions.
	* nlm/alpha-io.S:  Remove everything we don't need.
	* nlm/{alpha-patch.c, alpha-patch.h, alpha-uart.c, alpha-uart.h}:
	Remove, no longer needed.
	* nlm/alpha.c:  Merge in lots of stuff from previous files.
	* nlm/alpha.h:  Don't #include alpha-patch.h.  Make
	breakpoint_insn extern.
	* Move stuff from alpha-patch.h into here.

	* config/alpha/gdbserve.mt (TDEPFILES):  Get rid of alpha-uart.o.