arm: vf610: Add Vybrid VF610 to mxc_ocotp document

This patch adds Vybrid VF610 to mxc_ocotp document.

Signed-off-by: Alison Wang <b18965@freescale.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>

Add mxc_ocotp driver

Add an mxc_ocotp driver for i.MX6.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>