Convert CONFIG_PCI_CONFIG_HOST_BRIDGE to Kconfig

This converts the following to Kconfig:
   CONFIG_PCI_CONFIG_HOST_BRIDGE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 0ef5c29..53d0ebd7 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -48,6 +48,10 @@
 	  region type. This helps to add support for SoC's like OcteonTX/TX2
 	  where every peripheral is on the PCI bus.
 
+config PCI_CONFIG_HOST_BRIDGE
+	bool "Configure PCI host bridges"
+	default y if X86
+
 config PCI_MAP_SYSTEM_MEMORY
 	bool "Map local system memory from a virtual base address"
 	depends on MIPS
diff --git a/include/configs/x86-common.h b/include/configs/x86-common.h
index f28fafe..1366f62 100644
--- a/include/configs/x86-common.h
+++ b/include/configs/x86-common.h
@@ -45,11 +45,6 @@
  */
 
 /*-----------------------------------------------------------------------
- * PCI configuration
- */
-#define CONFIG_PCI_CONFIG_HOST_BRIDGE
-
-/*-----------------------------------------------------------------------
  * USB configuration
  */