efi_loader: move struct efi_device_path to efi.h

Avoid forward declaration of struct efi_device_path.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
2 files changed