netifd: parse_bool() accepts JSON booleans and numbers

parse_bool() compared its argument with the strings "1", "true", "0"
and "false" only. A service-injected wireless config arrives as JSON, so
a value of true, false, 1 or 0 gave null. wireless.uc then read
"mlo": true of such a wifi-iface as no MLO, and parse_attribute_list()
dropped every boolean attribute that came as JSON.

Accept true and 1 as true, and false and 0 as false. The result for the
UCI strings stays the same.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/network/config/netifd/files/lib/netifd/utils.uc

@@ -12,9 +12,13 @@ export function parse_bool(val)
 	switch (val) {
 	case "1":
 	case "true":
+	case true:
+	case 1:
 		return true;
 	case "0":
 	case "false":
+	case false:
+	case 0:
 		return false;
 	}
 };