[ofw] build warning with ipoib

[Smith, Stan]

Hefty, Sean wrote:
>> This is normal.
>> You get this message when building IPOIB\ for Server 2008 & Windows
>> 7.
>> Also will see this message for IPOIB_NDIS6_CM\ when building for
>> Server 2003 & XP.
>
> Can't this just be disabled automatically, rather than displaying a
> warning? similar to the way ND is blocked..

ND is blocked by processor architecture which appears to behave differently w.r.t. warnings.
Perhaps Tzachi has some insights as he originally set this up.
One could argue it's a WDK bug, in that a warning message is issued although it does not stop the build even though warnings normally do?