[coreboot] Unifying ADM drivers under i2c

[Vikram Narayanan]

Hi,

Under the directory drivers/i2c/, there are two different drivers
"adm1026" and "adm1027".

Expect for few differences, the two are same.
These can be merged together and can be selected with #ifdef's or may be
with Kconfig variables.

This time, I found which motherboard uses this! :)
ADM1027:
tyan (s2892,s2891,s4882)
msi (ms9282)

ADM1026:
arima (hdama)
Let me know If I have missed something.
Share your ideas if any.

PS: this file has windows line endings. I'll correct it while making the
above changes.

-
Thanks,
Vikram