tile PCI RC: include pci/pcie/Kconfig

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index bfff769..e41a381 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -408,6 +408,8 @@
 
 source "drivers/pci/Kconfig"
 
+source "drivers/pci/pcie/Kconfig"
+
 config TILE_USB
 	tristate "Tilera USB host adapter support"
 	default y