lzo: Add further info to a patch and mark as Inactive-Upstream

Add some further info to the patch based on upstream changes. Given the last release
in 2017 and glaring issues on at least armv5, it does raise the question on whether
we should drop this. There are probably better compression tools now.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>