Fix warning in make defconfig

Now the ACPI container and ACPI PCI hotplug driver has been converted
as built-in modules, so reflect these changes in IA64 defconfig file.
Signed-off-by: NJiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: NTony Luck <tony.luck@intel.com>

arch/ia64/configs/generic_defconfig

@@ -30,9 +30,9 @@ CONFIG_ACPI_BUTTON=m
 CONFIG_ACPI_FAN=m
 CONFIG_ACPI_DOCK=y
 CONFIG_ACPI_PROCESSOR=m
-CONFIG_ACPI_CONTAINER=m
+CONFIG_ACPI_CONTAINER=y
 CONFIG_HOTPLUG_PCI=y
-CONFIG_HOTPLUG_PCI_ACPI=m
+CONFIG_HOTPLUG_PCI_ACPI=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_INET=y