- Update config files.
      revert the ACPI and thermal config changes:
        config/i386/pae and config/x86-64/default:
    	CONFIG_ACPI_AC=m
    	CONFIG_ACPI_BATTERY=m
    	CONFIG_ACPI_BUTTON=m
    	CONFIG_ACPI_VIDEO=m
    	CONFIG_ACPI_FAN=m
    	CONFIG_ACPI_PROCESSOR=m
    	CONFIG_ACPI_THERMAL=m
    	CONFIG_ACPI_CONTAINER=m
    	CONFIG_X86_ACPI_CPUFREQ=m
    	CONFIG_THERMAL=m