sb/intel: Replace bad uses of find_resource

The `find_resource` function will never return null (will die instead).
In cases where the existing code already accounts for null pointers, it
is better to use `probe_resource` instead, which returns a null pointer
instead of dying.

Change-Id: I13c7ebeba2e5a896d46231b5e176e5470da97343
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58905
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>

src/southbridge/intel/lynxpoint/me.c

@@ -670,7 +670,7 @@ static int intel_mei_setup(struct device *dev)
 	struct mei_csr host;
 
 	/* Find the MMIO base for the ME interface */
-	res = find_resource(dev, PCI_BASE_ADDRESS_0);
+	res = probe_resource(dev, PCI_BASE_ADDRESS_0);
 	if (!res || res->base == 0 || res->size == 0) {
 		printk(BIOS_DEBUG, "ME: MEI resource not present!\n");
 		return -1;