- bsd-user: deal with new sem_wait2 and sem_wake2 syscalls in head.
- Bump PORTREVISION.

Submitted by:	sbruno
Obtained from:	https://github.com/seanbruno/qemu-bsd-user/commit/2478a4e4a33d0523cc436eabb4a27b258b4358b8


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@372121 35697150-7ecd-e111-bb59-0022644237b5