fix the error that print 'S' continuously in lesson 10

[wanghaEMQ]

When running the 32bit-main.asm, in my environment(nasm v2.13.02, qemu v2.11.1), it will print 'S' continuously. In my code, the only difference is the order of include. As follows.

''' %include "../08-32bit-print/32bit-print.asm" %include "32bit-switch.asm" %include "../09-32bit-gdt/32bit-gdt.asm" %include "../05-bootsector-functions-strings/boot_sect_print.asm" '''