rockchip: fix device packages for nanopi r4s enterprise edition
In official OpenWrt we use kmod-r8169 driver provided by upstream kernel
instead of kmod-r8168 driver from Realtek.
Fixes: afca1236f318 ("rockchip: add NanoPi R4S Enterprise Edition build")
Signed-off-by: Tianling Shen <[email protected]>