x86: Move fsp_fv.h to the generic fsp directory

This header file is the same for FSP v1 and v2. Move it into the general
fsp directory.

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