In latest release, some errors caused a crash when the paging is disabled.
This release solve these errors, and improve the code.

The system boots when ncpu=1.
Also, we have solved some problems:

• lapic is mapped even ncpu=1 (but only in SMP mode)
• temporary mapping is disabled even ncpu=1
• Removed unnecessary function dummyf()
• Fixed some errors in AP stack memory assign

GNU Mach compiles, but don't boot