etnaviv: correct number of instructions in dump_shader_info(..)

code_size is overall size in uint32 words of the whole shader. As
Vivante GPUs have a fixed size ISA we simply need to divide code_size
by 4 to get the number if ISA instructions.

shader-db shows the correct numbers now.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23396>

src/gallium/drivers/etnaviv/etnaviv_shader.c

@@ -387,7 +387,7 @@ dump_shader_info(struct etna_shader_variant *v, struct util_debug_callback *debu
          "%s shader: %u instructions, %u temps, "
          "%u immediates, %u loops",
          etna_shader_stage(v),
-         v->code_size,
+         v->code_size / 4,
          v->num_temps,
          v->uniforms.count,
          v->num_loops);