tree d727c83a72acc8f13cd35d9c4f68ac836babf4ce
parent d4ee68656112a7fd6864afd611f6426430535099
author Bin Meng <bmeng.cn@gmail.com> 1501161154 -0700
committer Bin Meng <bmeng.cn@gmail.com> 1501589822 +0800

x86: Use default stack boundary alignment

At present U-Boot x86 build is using -mpreferred-stack-boundary=2
which is 4 bytes stack boundary alignment. With 64-bit U-Boot, the
minimal required stack boundary alignment is 16 bytes.

If -mpreferred-stack-boundary is not specified, the default is 4
(16 bytes). Switch to use the default one.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>