conf/machine: add jetson-nano-2gb-devkit.conf
conf/machine: add jetson-nano-2gb-devkit.conf

This is similar to jetson-nano-qspi-sd, with updates
for the board information and U-Boot configuration.

Also added the kernel module for the rtl8821cu Wi-Fi
dongle as recommended for users that get the
Wi-Fi-bundled kit.

Signed-off-by: Matt Madison <1fa2ef4755a9226cb9a0a4840bd89b158ac71391@madison.systems>

madisongh/meta-tegra,madisongh/meta-tegra,madisongh/meta-tegra,madisongh/meta-tegra,madisongh/meta-tegra