intel/isl: Fix up asserts in calc_phys_level0_extent_sa
intel/isl: Fix up asserts in calc_phys_level0_extent_sa

The assertion that a format is uncompressed in the multisample layouts
isn't quite right.  What we really want to assert is that the format
supports multisampling which is a bit more complicated query.  We also want
to assert that it has a block size of 1x1 since we do nothing with the
block size in the phys_level0_sa assignment.

Signed-off-by: Jason Ekstrand <68c46a606457643eab92053c1c05574abb26f861@jlekstrand.net>
Reviewed-by: Topi Pohjolainen <749697f19798b7f640b17221fd283b903825f071@intel.com>
Reviewed-by: Chad Versace <4b94d436ff8c93527a96d251ac64b06311506efe@chromium.org>
Reviewed-by: Nanley Chery <d78cd5d33e98a5581566f188959f731bd0b1c0fd@intel.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler