Openwrt 包管理工具添加 https 支持

Openwrt 下用 https 的软件源更新时会报错：

wget: SSL support not available, please install one of the libustream-ssl-* libraries as well as the ca-bundle and ca-certificates packages.

可安装相关软件包解决。

opkg update
opkg install wget
opkg install ca-certificates

Referrence

SSL and Certificates in wget