x86, boot: Document intermediates more clearly
x86, boot: Document intermediates more clearly

This adds a comment detailing the various intermediate files used to build
the bootable decompression image for the x86 kernel.

Signed-off-by: Kees Cook <50cb10d2be062154b17ab4d66a4eab34f1cf1c84@chromium.org>
Reviewed-by: Josh Triplett <c028c213ed5efcf30c3f4fc7361dbde0c893c5b7@joshtriplett.org>
Cc: Matt Fleming <b02f0790d66a0f0a6b369873bf6df37420fbe5dd@intel.com>
Cc: Ard Biesheuvel <66d3c5fdaeea7ff1f996ad04f2c45e08ab38e2f5@linaro.org>
Cc: Junjie Mao <88b3cf1db8ab286da8e1f995943e42f11356f38b@gmail.com>
Link: 417a6fc20d8e4b80c8e6c761407d374c4bcbf07d@www.outflux.net
Signed-off-by: Thomas Gleixner <00e4cf8f46a57000a44449bf9dd8cbbcc209fd2a@linutronix.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs