Fix two issues with the ACPI_DEBUG_PRINT macros.

1) Add the ACPI_DO_WHILE macro to the main DEBUG_PRINT helper macro.
2) Rename ACPI_DEBUG macro to ACPI_DO_DEBUG_PRINT since ACPI_DEBUG
   is already commonly used by the various hosts.
AcpiGetSleepTypeData: Allow \_Sx to return either 1 or 2 integers.

Although the ACPI spec defines the \_Sx objects to return a package
containing one integer, most BIOS code returns two integers and the
previous code reflects that. However, we also need to support BIOS
code that actually implements to the ACPI spec, and this change
implements this.
Debugger: Enhance Sleep command to execute all sleep states.

This change allows Sleep to be invoked with no arguments. This causes
the debugger to execute all of the sleep states, 0-5, automatically.