[oe] Add sharprom-compatible as distro in bugtracker

[Rolf Leggewie]

Michael 'Mickey' Lauer wrote:

 > Then again, OE was not designed to build packages for
 > ancient systems such as the SharpROM. OE actually does a good job in
 > supporting existing binary-only distributions, but where it shines is
 > not that but rather creating modern distributions from scratch.

No question.  But even at the core, I hardly imagine ever having 0 open 
bugs in the BTS.  It is just not possible nor desirable.

>>> We should close it when all SharpROM-compatible issues are closed.
> 
>> I wonder if that is ever going to happen...
> 
> Probably never.

Since we agree here, I have taken the liberty to close 1657 and left a 
note that people should use the search function instead.