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/nuvoton/npcd378/superio.c b/src/superio/nuvoton/npcd378/superio.c
index 9889980..f1db509 100644
--- a/src/superio/nuvoton/npcd378/superio.c
+++ b/src/superio/nuvoton/npcd378/superio.c
@@ -60,7 +60,7 @@
 		pc_keyboard_init(PROBE_AUX_DEVICE);
 		break;
 	case NPCD378_HWM:
-		res = find_resource(dev, PNP_IDX_IO0);
+		res = probe_resource(dev, PNP_IDX_IO0);
 		if (!res || !res->base) {
 			printk(BIOS_ERR, "NPCD378: LDN%u IOBASE not set.\n", NPCD378_HWM);
 			break;