devicetree: Fix improper use of chip_operations

Auto-discoverable PCI devices do not require field .enable_dev
of chip_operations to be set. They are matched with PCI drivers
by the use of PCI vendor and device ID fields.

The name given for the chip_operations struct must match the
pathname the way it is present in the devicetree.cb files. If
there was no match, util/sconfig would currently choose to
use the empty weak declaration it creates in static.c file.

Change-Id: I684a087a1f8ee4e1a5fd83450cd371fcfdbb6847
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35096
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/drivers/generic/bayhub/bh720.c b/src/drivers/generic/bayhub/bh720.c
index 09fa578..b365132 100644
--- a/src/drivers/generic/bayhub/bh720.c
+++ b/src/drivers/generic/bayhub/bh720.c
@@ -82,12 +82,6 @@
 	.devices	= pci_device_ids,
 };
 
-static void bh720_enable(struct device *dev)
-{
-	dev->ops = &bh720_ops;
-}
-
-struct chip_operations bayhub_bh720_ops = {
+struct chip_operations drivers_generic_bayhub_ops = {
 	CHIP_NAME("BayHub Technology BH720 PCI to eMMC 5.0 HS200 bridge")
-	.enable_dev = bh720_enable,
 };