radeonsi: ensure sample locations are set for line and polygon smoothing

Since commit d938b8c, the sample locations are no longer set unconditionally,
so we need to set the atom to dirty on all chips, not just Polaris.

Cc: 12.0 <mesa-stable@lists.freedesktop.org>

src/gallium/drivers/radeonsi/si_state_shaders.c

@@ -2171,8 +2171,7 @@ bool si_update_shaders(struct si_context *sctx)
 			if (sctx->b.chip_class == SI)
 				si_mark_atom_dirty(sctx, &sctx->db_render_state);
 
-			if (sctx->framebuffer.nr_samples <= 1 &&
-			    sctx->b.family >= CHIP_POLARIS10)
+			if (sctx->framebuffer.nr_samples <= 1)
 				si_mark_atom_dirty(sctx, &sctx->msaa_sample_locs.atom);
 		}
 	}