nvk: fix pipeline pushbuf sizing

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24326>

src/nouveau/winsys/nouveau_push.c

@@ -64,11 +64,11 @@ fail_bo:
 
 void
 nouveau_ws_push_init_cpu(struct nouveau_ws_push *push,
-                         void *data, size_t size)
+                         void *data, size_t size_bytes)
 {
    push->map = data;
    push->orig_map = push->map;
-   push->end = push->map + size;
+   push->end = push->map + (size_bytes / sizeof(uint32_t));
 
    util_dynarray_init(&push->bos, NULL);
 }

src/nouveau/winsys/nouveau_push.h

@@ -26,7 +26,7 @@ struct nouveau_ws_push {
 
 struct nouveau_ws_push *nouveau_ws_push_new(struct nouveau_ws_device *, uint64_t size);
 void nouveau_ws_push_init_cpu(struct nouveau_ws_push *push,
-                              void *data, size_t size);
+                              void *data, size_t size_bytes);
 void nouveau_ws_push_destroy(struct nouveau_ws_push *);
 void nouveau_ws_push_append(struct nouveau_ws_push *,
                             const struct nouveau_ws_push *);