Currently there's no usable open source TPL implementation for rk3576 SoCs, so pack the prebuilt firmware from the vendor. Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org> Link: https://github.com/openwrt/openwrt/pull/20041 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>