ACPICA: Utilities: Deploy ACPI_DEBUGGER_EXEC for ACPI_DEBUGGER enabled code in utglobal.c.

This patch deploys ACPI_DEBUGGER_EXEC usage to utglobal.c to reduce "ifdef"
of ACPI_DEBUGGER.  No functional changes.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>