drivers/pci/Kconfig: Add PCI

Add 'PCI' as a menu option and migrate all existing users.

Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
diff --git a/configs/PATI_defconfig b/configs/PATI_defconfig
index 19668b4..a24dcb2 100644
--- a/configs/PATI_defconfig
+++ b/configs/PATI_defconfig
@@ -18,3 +18,4 @@
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_NET is not set
 # CONFIG_CMD_NFS is not set
+# CONFIG_PCI is not set