superio: 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: Ic6e28add78f686fc9ab4556eddbedf7828fba9ef
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58909
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
diff --git a/src/superio/ite/it8786e/superio.c b/src/superio/ite/it8786e/superio.c
index 55fff91..8d9ec14 100644
--- a/src/superio/ite/it8786e/superio.c
+++ b/src/superio/ite/it8786e/superio.c
@@ -20,7 +20,7 @@
 	switch (dev->path.pnp.device) {
 	case IT8786E_EC:
 		conf = dev->chip_info;
-		res = find_resource(dev, PNP_IDX_IO0);
+		res = probe_resource(dev, PNP_IDX_IO0);
 		if (!conf || !res)
 			break;
 		ite_ec_init(res->base, &conf->ec);