[third_party] Add third_party/perfetto (#14793)

diff --git a/.gitmodules b/.gitmodules
index 477eb44..0e2b2f6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -184,3 +184,6 @@
 [submodule "third_party/mbed-mcu-boot/repo"]
 	path = third_party/mbed-mcu-boot/repo
 	url = https://github.com/ATmobica/mcuboot.git
+[submodule "perfetto"]
+	path = third_party/perfetto/repo
+	url = https://github.com/google/perfetto
diff --git a/third_party/perfetto/repo b/third_party/perfetto/repo
new file mode 160000
index 0000000..57b59d6
--- /dev/null
+++ b/third_party/perfetto/repo
@@ -0,0 +1 @@
+Subproject commit 57b59d6e2effdc5d3b9dc8da68fa519d9d37f2e0