spirv: always expose SpvCapabilityStorageImageExtendedFormats

I forgot to do this in commit 76b97d544e ("anv: enable storage image
extended formats"). Since both drivers support this now, no need for the
conditional enable.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
3 files changed