add_and_modified_sdhi-usb_function-ethernet

Hi,
Here are some scripts of sdhi, usb-function and ethernet.
that I added some new scripts of tcp-check in ethernet, suspending g_serial in
usb-function and in sdhi card while reading and writing.
Modified udp check in order to change file name and make python code clearly.
Modified g_ether and g_serial in usb-function to confirm device interface before run
and change the way of testing g_serial.
Please see it and push it up to your branch, or tell me know if you want me to modified
any thing.

Best Regards,
CAO MINH HIEP.

Signed-off-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
add_new_scripts_of_usb-function_and_sdhi

Hi Simon-san

I have added some new scripts of usb-function and sdhi.
These scripts will test speed of read/write and write a data over capacity
of storage. I have tested them on Armadillo800eva and it run without
any problems. Please see it and push them into your branch or show me
something you want me modify.

Best Regard,

Cao Minh Hiep.

Signed-off-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>