armv7hl

[Pavel Zhukov]

Hi Ada-lovers,

I'm trying to rebuild ada packages with gcc and seems like this time
armv7hl is broken.

Initially it was a problem with gprinstall code which was crashing on exit
from exception handler (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89493).
After spending ~1 week on debugging we gave up and I have worked this
around by getting rid of Name_Error but now matreshka is failed with
segmentation fault,

I'm going to drop armv7hl from the list of gprbuild_arches untill bug is
fixed because it can take years.