openssh: create host keys on a read-only file system

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
system: add option to install additional init scripts

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
system/skeleton: fixup /etc/fstab

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
system: add option to load specific kernel modules during startup

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
skeleton: update rcS

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
board/ryco: update rpi status script
board/ryco/configs/rpi_minimal.conf: remove more target packages

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
board/ryco/configs: add minimal read-only config

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
board/ryco/configs: update configs

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
board/ryco: sync raspi-kernel.patch with upstream

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
board/ryco: update raspberry pi patchset

Signed-off-by: Ryan Coe <bluemrp9@gmail.com>
board/ryco/configs: new nfs server config
rpi_server2.config: fix ip address
rpi_server.config: remove wireless programs and noip
board/ryco/configs: rpi_server3.config new pppoe gateway server config
rpi_server.config: remove mysql and other unneeded packages
configs: update rpi_server2.config
configs: use remote patchset and defconfig
rpi_server2.config: make read-only filesystem and remove some options
add overlay directory for rpi_server2.config