Add support for configuring rootfs mount options from cmdline.
Rootfs mount options can be passed by declaring in the kernel
cmdline as much options as needed prefixed with "rootfs_mount_options."
An example usage is with rootfs with F2FS filesystem to enable
compress_algorithm to reduce flash wear by compressing the files before
writing to flash.
Example usage:
"... rootfs_mount_options.compress_algorithm=zstd ..."
To pass multiple options:
"... rootfs_mount_options.compress_algorithm=zstd rootfs_mount_options.noinline_data ..."
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
0b23d3608c