Please give back openttd on s390 (experimental)

[Rubidium <rubidium@openttd.org>]

Hi,

OpenTTD 1.0.4~rc1-1 (in experimental) failed on s390 due to a small 
endianness issue in GRFCodec (#596056). That issue has been solved in 
grfcodec 1.0.0+debian1-2, which is already built for s390 but not yet 
installed.

The issue was related to the detection of the endianness and the 
application itself has been used on big endian systems for a long time, 
just not on one where GCC does not define __BIG_ENDIAN__. In any case, 
the fix was tested in an emulated (using Hercules) s390 installation.

I'm far from certain whether the dep-wait is needed. Nevertheless, for 
OpenTTD in experimental, I'd like to request:

dw openttd_1.0.4~rc1-1 . s390 . -m 'grfcodec (>= 1.0.0+debian1-2)'
gb openttd_1.0.4~rc1-1 . s390

Thanks in advance and regards,
Remko 'Rubidium' Bijker