anv: Limit memory maps to the client-allocated size

No need to expose extra padding or CCS data to the client map.  Now that
we have the data, we can also make the BindBufferMemory asserts a bit
more accurate.

Reviewed-by: Iván Briano <ivan.briano@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22031>

src/intel/vulkan/anv_private.h

@@ -1577,6 +1577,9 @@ _anv_combine_address(struct anv_batch *batch, void *location,
 struct anv_device_memory {
    struct vk_object_base                        base;
 
+   /** Client-requested allocaiton size */
+   uint64_t                                     size;
+
    struct list_head                             link;
 
    struct anv_bo *                              bo;