[LTP] [PATCH 2/2] device_drivers/uart01: Add uart01 test

[Cixi Geng]

> I had a time off and was planting plants in my garden, I will get back
> to the uart ASAP, but then we have a public holiday on Friday and Monday
> so I may not manage to do much until next week.
>
> --
> Cyril Hrubis
> chrubis@suse.cz

Hi Cyril:
I had study the ltp execution framework and found that the LTP
detection device is
not suitable for device driver test at present.
Like the UART test, I want have a auto-detect way to find the device
needed to test
 in the current running LtP machines.
Now I have test the uart case in several sprdtream Soc
these board  have different /dev/tty* device。and I nedd run in CI
manual export device puzzled me to do the auto-test-job.
moreover I wil  porting other device driver testcases in the future.
So can We expand the LTP detection ?