anv: rename total_batch_size

This name is confusing, the real thing it represents is the allocated
amount of batch space.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24628>

src/intel/vulkan/anv_private.h

@@ -1491,7 +1491,7 @@ struct anv_batch {
     * Sum of all the anv_batch_bo sizes allocated for this command buffer.
     * Used to increase allocation size for long command buffers.
     */
-   size_t                                       total_batch_size;
+   size_t                                       allocated_batch_size;
 
    struct anv_address                           start_addr;