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intel/blorp: disable use of REP16 independent of format

Tapani Pälli requested to merge tpalli/mesa:disable_repcol into main

What does this MR do and why?

intel/blorp: disable use of REP16 independent of format

Previously we were optimistic and tied this to certain format but wa
description lists other formats and bspec clearly disallows the usage.

Issue can be seen with different 16bpp tests, effect looks a bit like
dithering pattern but it is not, it is just rep16 failing.

Fixes:
   GTF-GL46.gtf42.GL3Tests.texture_storage.texture_storage_texture_as_framebuffer_attachment

on DG2 and MTL, some 565 EGL tests on Android and internal issue on game
that displays a dither like pattern on the background while it's
supposed not to do that.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10646
Cc: mesa-stable
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>

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