exynos: ion: few fixes

Change-Id: I76941867826071fb97512b6388c26106b8d40389
Signed-off-by: zwliew <zhaoweiliew@gmail.com>
update headers

using cfg

Change-Id: Ic5478b3637e1e51ba3e3428144df45483279cc66
Signed-off-by: zwliew <zhaoweiliew@gmail.com>