Moved code that sets rootfs mount options to after online_config.txt.
Moved code that sets rootfs mount options to after online_config.txt.

This allows to change rootfstype in the online_config script.
Also added default case branch that fails for unknown filesystems.
Backported to v1.0.x branch.

Conflicts:
	scripts/etc/init.d/rcS

kolargol/raspbian-ua-netinst,malsony/raspbian-ua-netinst,daytonpid/FireHawk,beylsp/rpi-installer,FooDeas/raspberrypi-ua-netinst,racing-tech/rrp-raspi-installer,dicer/raspbian-ua-netinst,racing-tech/rrp-raspi-installer,yodaaut/raspbian-ua-netinst,firepick/FireHawk,beylsp/rpi-installer,matt2005/raspbian-ua-netinst,cybercircuits/raspbian-ua-netinst