Move the standard definitions of constants, variously-sized ints,limits into
respective architecture specific files. com32/include/bitsize holds the standard
header files that in turn include bitsize32 or bitsize64 based on the architecture.
The makefiles should build pick the right ones based on architecture.

Files com32/include/sys/cpu.h, com32/include/sys/bitops.h now have
architecture specific files underneath to define relevant macros definitions.

com32/include/setjmp.h has architecture specific counterparts underneath.

ssize_t in dos/stdlib.h is appropriately defined based on architecture to be able
to support building for 32bit and 64bit environments.

Remanants of the unused old i386-only files, if any, need to be pruned.

Don't make non-executable files +x...

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Conflicts:
	com32/include/netinet/in.h
	com32/include/sys/cpu.h
	dos/argv.c
	dos/malloc.c
	dos/syslinux.c
	extlinux/main.c
	libinstaller/setadv.c
	libinstaller/syslinux.h
	libinstaller/syslxint.h
	libinstaller/syslxmod.c
	linux/syslinux.c
	mtools/syslinux.c
	win32/syslinux.c

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Automatically reformat dos/stdlib.h using Nindent.

Do this for all files except HDT, gPXE and externally maintained
libraries (zlib, tinyjpeg, libpng).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Add a prototype for calloc() to the DOS installer library.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>