sensors_parse_chip_name: Initialize path

sensors_parse_chip_name claims to overwrite all of result but path is
not set. This is generally not a problem when using statically allocated
data that is pre-zeroed but the parser uses dynamic allocation and the
chip name may contain garbage depending on the specific code flow
resulting from compiling the parser.
Setting the path was dropped when it was renamed from busname.

Fixes: 8896ba3b ("Rename sensors_chip_name.busname to path, as this is
		  what we are using it for by now.")

lib/data.c

@@ -84,6 +84,7 @@ int sensors_parse_chip_name(const char *name, sensors_chip_name *res)
 {
 	char *dash;
 
+	memset(res, 0, sizeof(*res));
 	/* First, the prefix. It's either "*" or a real chip name. */
 	if (!strncmp(name, "*-", 2)) {
 		res->prefix = SENSORS_CHIP_NAME_PREFIX_ANY;