perfetto: add missing header file

Bug: 210849155
Change-Id: I8037d11c62eded79b40d769ba96d72a279f3be91
diff --git a/src/perfetto_cmd/pbtxt_to_pb.cc b/src/perfetto_cmd/pbtxt_to_pb.cc
index b78d938..7420502 100644
--- a/src/perfetto_cmd/pbtxt_to_pb.cc
+++ b/src/perfetto_cmd/pbtxt_to_pb.cc
@@ -16,6 +16,7 @@
 
 #include <ctype.h>
 
+#include <limits>
 #include <map>
 #include <set>
 #include <stack>