eeepc-wmi: kconfig changes to fix build errors

Fix eeepc-wmi build when CONFIG_HOTPLUG_PCI is not enabled:

eeepc-wmi.c:(.text+0x3bc5e9): undefined reference to `pci_hp_deregister'
eeepc-wmi.c:(.text+0x3bcca4): undefined reference to `__pci_hp_register'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 0c7cf66..0253157 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -462,6 +462,7 @@
 	depends on EXPERIMENTAL
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on RFKILL || RFKILL = n
+	depends on HOTPLUG_PCI
 	select INPUT_SPARSEKMAP
 	select LEDS_CLASS
 	select NEW_LEDS