freedreno: Add missing dep on freedreno tracepoints.

We were only get guaranteed that libfreedreno (and thus the tracepoints
generation) was ready when we linked, not when we compiled the gmemtool.c
that also used it.

Fixes: a02dcb970f ("freedreno: Add GPU tracepoints")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9056>
(cherry picked from commit eabee821e9)

.pick_status.json

@@ -1903,7 +1903,7 @@
         "description": "freedreno: Add missing dep on freedreno tracepoints.",
         "nominated": true,
         "nomination_type": 1,
-        "resolution": 0,
+        "resolution": 1,
         "master_sha": null,
         "because_sha": "a02dcb970fff17e73648b58bf4a603bc4f9c0c36"
     },

src/gallium/drivers/freedreno/meson.build

@@ -215,7 +215,7 @@ files_libfreedreno = files(
   'ir3/ir3_gallium.h',
 )
 
-files_libfreedreno += custom_target(
+freedreno_tracepoints = custom_target(
   'freedreno_tracepoints.[ch]',
   input: 'freedreno_tracepoints.py',
   output: ['freedreno_tracepoints.c', 'freedreno_tracepoints.h'],
@@ -228,6 +228,8 @@ files_libfreedreno += custom_target(
   depend_files: u_trace_py,
 )
 
+files_libfreedreno += freedreno_tracepoints
+
 freedreno_includes = [
   inc_mesa, inc_mapi,
   inc_src, inc_include, inc_gallium, inc_gallium_aux,
@@ -296,7 +298,10 @@ ir3_compiler = executable(
 
 gmemtool = executable(
   'gmemtool',
-  'gmemtool.c',
+  [
+    'gmemtool.c',
+    freedreno_tracepoints[1]
+  ],
   include_directories : freedreno_includes,
   dependencies : [
     idep_nir,