Gerrit cleanup: Abandoning patches older than 18 months

[Martin Roth]

I've just completed another round of gerrit cleanup, abandoning a bunch of
patches that are older than 18 months.  Here's a link to what was just
abandoned:

https://review.coreboot.org/#/q/status:abandoned+comment:%22Cleanup:+Abandon...

I plan to do this again in another month, abandoning any patches found by
this query:
https://review.coreboot.org/#/q/is:open+before:2015-06-15

Some of these patches might still be valuable, so please feel free to pick
up any abandoned patches that you want to work on to try to integrate.

Martin