profiling: Add unittest for wire_protocol

Fix bug.

Change-Id: Ide59ba95da4cc22970a25701a245516427e9c18e
diff --git a/Android.bp b/Android.bp
index b6dadc0..541e66f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -3859,6 +3859,7 @@
     "src/profiling/memory/unwinding.cc",
     "src/profiling/memory/unwinding_unittest.cc",
     "src/profiling/memory/wire_protocol.cc",
+    "src/profiling/memory/wire_protocol_unittest.cc",
     "src/protozero/message.cc",
     "src/protozero/message_handle.cc",
     "src/protozero/message_handle_unittest.cc",