Create /tmp/bsdinstall_etc even if we aren't starting the installer so that
dhclient can write resolv.conf when used from the live environment.

PR:		176078
MFC after:	3 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@271549 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Replace the imx5 and imx6 iomux drivers with a single common driver that
uses the new fdt_pinctrl interface.


git-svn-id: svn+ssh://svn.freebsd.org/base/head@271550 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f