[PATCH 8/8] doc: slimbootloader: Update 64-bit build instruction

[Bin Meng]

On Wed, Apr 22, 2020 at 8:45 AM <aiden.park at intel.com> wrote:
>
> From: Aiden Park <aiden.park at intel.com>
>
> Add steps to build 64-bit Slim Bootloader and U-Boot.
>
> Signed-off-by: Aiden Park <aiden.park at intel.com>
> ---
>  doc/board/intel/slimbootloader.rst | 29 +++++++++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>

Reviewed-by: Bin Meng <bmeng.cn at gmail.com>