This fixes a page fault when nr_samples=4 but nr_storage_samples=2.
Based on si_is_format_supported this is only supported for color
formats and when has_eqaa_surface_allocator is true (< GFX11).
The referenced commit below didn't introduce the issue but it
exposed it by forcing the gfx blit path to be used.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/13255
Fixes: 3424e16ece ("radeonsi: add decision code to select when to use CB_RESOLVE for performance")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38925>
(cherry picked from commit 645fff5dae)
a943c55aea