Add some bits to the armv6 build to get a successful build/run on the RPi.

Not bumping the PORTREVISION as this is only applied to ARM builds.

Phabric:        https://reviews.freebsd.org/D756
PR:             181318
Submitted by:   mikael.urankar@gmail.com
Reviewed by:    kwm@
Approved by:    bdrewery (mentor)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@368293 35697150-7ecd-e111-bb59-0022644237b5