Network adakta release for imx6ull

Release based on core-image-minimal and include addition utils for configure networks "usb-modeswitch usb-modeswitch-data dnsmasq lsof usbutils pciutils proftpd curl wireless-tools iptables iproute2 tcpdump ppp screen libnl mtd-utils mtd-utils-ubifs mtd-utils-jffs2 mtd-utils-misc jsoncpp bridge-utils psmisc sysstat coreutils ntp net-snmp net-snmp-server openvpn xl2tpd strongswan ppp-l2tp ppp-minconn ppp-password ppp-radius ppp-tools ppp-oa ppp-oe ppp-winbind pptp-linux i2c-tools spitools spidev_test"