util:Move only gallium used u_debug_refcnt.* and u_debug_describe.* into src/gallium/auxiliary/util/

Because these files indeed doesn't belongs to src/util, they are tightly coupled with
src/gallium/auxiliary

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19522>

src/gallium/auxiliary/meson.build

@@ -215,10 +215,14 @@ files_libgallium = files(
   'util/u_compute.c',
   'util/u_compute.h',
   'util/u_debug_cb.h',
+  'util/u_debug_describe.c',
+  'util/u_debug_describe.h',
   'util/u_debug_flush.c',
   'util/u_debug_flush.h',
   'util/u_debug_image.c',
   'util/u_debug_image.h',
+  'util/u_debug_refcnt.c',
+  'util/u_debug_refcnt.h',
   'util/u_draw.c',
   'util/u_draw.h',
   'util/u_draw_quad.c',

src/util/meson.build

@@ -130,10 +130,6 @@ files_mesa_util = files(
   'u_atomic.h',
   'u_call_once.c',
   'u_call_once.h',
-  'u_debug_describe.c',
-  'u_debug_describe.h',
-  'u_debug_refcnt.c',
-  'u_debug_refcnt.h',
   'u_dl.c',
   'u_dl.h',
   'u_dynarray.c',