siteinfo: Move certain db entries to common-linux

siteinfo: Move certain db entries to common-linux

Note that we had a number of unused and ignored settings wrt mutex
support.  These have been dropped as they weren't being used and
implied some odd things to boot.  This is also a partial resync with
oe.dev which had some, but not all of these changes.

Signed-off-by: Tom Rini <tom_rini@mentor.com>