tools/bootconfig: Align the bootconfig applied initrd image size to 4

Align the bootconfig applied initrd image size to 4. To pad the data,
bootconfig will use space (0x20) in front of the bootconfig data,
and expands its size and update checksum.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
2 files changed