ARC: [eznps] add telnetd/ftpd services

Invoked services now supplied by inetd from busybox
Also enable telnet by root

Signed-off-by: Noam Camus <noamc@ezchip.com>
ARC: [eznps] make ftpd ask for password during login

This is in order to not break our expect scripts and IDE plugin.
Signed-off-by: Noam Camus <noamc@ezchip.com>
ARC: [eznps] change busybox defconfig

This one includes telnetd/ftpd

Signed-off-by: Noam Camus <noamc@ezchip.com>
ARC: [eznps] set PS1 to be EZdk

Signed-off-by: Noam Camus <noamc@ezchip.com>
ARC: [eznps] update SYSV users

Users root and default got password identical to their username
Also no getty at serial just need to press any key.

Signed-off-by: Noam Camus <noamc@ezchip.com>
ARC: [eznps] add BR2 defconfig

This is minimal configuration for EZdk

Signed-off-by: Noam Camus <noamc@ezchip.com>