v3d/simulator: hw mem is now an v3d_size_t, typedef to uint32_t

It would be really awesome to be able to write this so it would work
with old and new versions of the simulator, but I was not able to do
that.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11040>

src/broadcom/simulator/v3d_simulator_wrapper.cpp

@@ -46,7 +46,7 @@ struct v3d_hw *v3d_hw_auto_new(void *in_params)
 }
 
 
-uint32_t v3d_hw_get_mem(const struct v3d_hw *hw, size_t *size, void **p)
+uint32_t v3d_hw_get_mem(const struct v3d_hw *hw, uint32_t *size, void **p)
 {
         return hw->get_mem(size, p);
 }