pci: Drop DM_PCI

This option has not effect now. Drop it, using PCI instead where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig
index 1835607..863c3fb 100644
--- a/drivers/virtio/Kconfig
+++ b/drivers/virtio/Kconfig
@@ -31,7 +31,7 @@
 
 config VIRTIO_PCI
 	bool "PCI driver for virtio devices"
-	depends on DM_PCI
+	depends on PCI
 	select VIRTIO
 	help
 	  This driver provides support for virtio based paravirtual device