fix(docs): fix the indent and the build command for MT8188

This patch includes
- Fix the indent.
- LD argument is no longer needed. Remove LD parameter from the build
  command.

Change-Id: I615704cf6f4b6fd9e37c047b18c40f00652e269d
Signed-off-by: Yidi Lin <yidilin@chromium.org>
1 file changed