swig: support node.js v12

Maintainer: @blogic me
Compile tested: head r14241-ba2ddba, x86_64
Run tested: x86_64 (VirtualBox)

Description:
Addressed the build failure with node.js version 12.

https://github.com/openwrt/packages/pull/12225

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

utils/swig/Makefile

@@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=swig
 PKG_VERSION:=4.0.2
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=@SF/$(PKG_NAME)