[LinuxBIOS] [PATCH][v3] Merge hlt() into cpu.h (svn resync)

[Uwe Hermann]

See patch.

Having an extra file just for the tiny hlt() is really not required.

Btw, why does die() do an endless loop around hlt()? Is there a reason
a hlt() will _not_ immediately halt the CPU? Can that happen?

If so, shall we move the loop into hlt() itself?

Uwe.