PCI: shpchp: Convert SHPC to be builtin only

We need to be able coordinate between SHPC and acpiphp to determine which
driver handles hotplug of a given bridge.  Because acpiphp is already bool,
convert SHPC to be bool as well.
Suggested-by: NBjorn Helgaas <bhelgaas@google.com>
Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Reviewed-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/pci/hotplug/Kconfig

@@ -104,14 +104,11 @@ config HOTPLUG_PCI_CPCI_GENERIC
 	  When in doubt, say N.
 
 config HOTPLUG_PCI_SHPC
-	tristate "SHPC PCI Hotplug driver"
+	bool "SHPC PCI Hotplug driver"
 	help
 	  Say Y here if you have a motherboard with a SHPC PCI Hotplug
 	  controller.
 
-	  To compile this driver as a module, choose M here: the
-	  module will be called shpchp.
-
 	  When in doubt, say N.
 
 config HOTPLUG_PCI_POWERNV