MST LPT testing

Base on memtest86 project(http://www.memtest86.com) & Grant MST LPT source code.

1. lpt.cpp -> lpt.c
1-1. replace inb, outb
1-2. include io.h
1-3. replace printf -> cprint

2. modify the Makefile
2-1. lpt.o

3. modify the do_test() in main.c
3-1. include lp.h

Allen