Merge branch 'freebsd/12-stable/master' into hardened/12-stable/master
* freebsd/12-stable/master: Stop accounting for MAX_KMAP when allocating UMA boot pages. MFC r364302, r364306: Remove the VM map zone. In 13-CURRENT, the linux rc script uses "nocover" mount option to avoid mounting required filesystems twice. However, this option hasn't been MFC'd. Implement its functionality in a different way, by stating the mount point.