freedreno/a4xx: silence coverity warning

CID 1362451

Signed-off-by: Rob Clark <robclark@freedesktop.org>

src/gallium/drivers/freedreno/a4xx/fd4_program.c

@@ -121,6 +121,12 @@ emit_shader(struct fd_ringbuffer *ring, const struct ir3_shader_variant *so)
 		OUT_RELOC(ring, so->bo, 0,
 				CP_LOAD_STATE_1_STATE_TYPE(ST_SHADER), 0);
 	}
+
+	/* for how clever coverity is, it is sometimes rather dull, and
+	 * doesn't realize that the only case where bin==NULL, sz==0:
+	 */
+	assume(bin || (sz == 0));
+
 	for (i = 0; i < sz; i++) {
 		OUT_RING(ring, bin[i]);
 	}