* gnu/bootloader/u-boot.scm (install-orangepi-r1-plus-lts-rk3328-u-boot, u-boot-orangepi-r1-plus-lts-rk3328-bootloader): New variables. * gnu/packages/bootloaders.scm (u-boot-orangepi-r1-plus-lts-rk3328): New variable. Signed-off-by: Vagrant Cascadian <vagrant@debian.org>