Fix perfetto dependency in open source

I was hoping that a missing repo that wasn't used by any target was OK, and it was in the XNNPACK repo, but it is not in the XLA repo (which has some bazel query tests).

PiperOrigin-RevId: 824582315

Author: dsharletg

ynnpack/subgraph/BUILD

@@ -27,19 +27,22 @@ define_build_option(
     default_all = [],
 )
 
-# The capability to capture perfetto traces is disabled by default. To enable and use it, add:
-#
-# git_repository(name = "perfetto", branch = "main", remote = "https://github.com/google/perfetto")
-#
-# To MODULE.bazel, and then add `--define ynn_enable_perfetto=true` to the bazel command line.
 cc_library(
     name = "perfetto",
     srcs = ["perfetto.cc"],
     hdrs = ["perfetto.h"],
     compatible_with = _COMPATIBLE_WITH,
     defines = ["YNN_ENABLE_PERFETTO"],
     tags = ["manual"],
-    deps = ["@perfetto//:libperfetto_client_experimental"],
+    deps = [
+        # The capability to capture perfetto traces is disabled by default. To enable and use it:add:
+        #
+        # git_repository(name = "perfetto", branch = "main", remote = "https://github.com/google/perfetto")
+        #
+        # To MODULE.bazel, add `--define ynn_enable_perfetto=true` to the bazel command line, and
+        # uncomment this dependency.
+        # "@perfetto//:libperfetto_client_experimental"
+    ],
 )
 
 cc_library(