Fix < vs <= in timing_report_dump

Change-Id: I5bcb2bc42e16636b6e3219bf77621ee6a37e1e89
Signed-off-by: James Kuszmaul <james.kuszmaul@bluerivertech.com>
diff --git a/aos/events/timing_report_dump_lib.cc b/aos/events/timing_report_dump_lib.cc
index b33cc73..85ea5be 100644
--- a/aos/events/timing_report_dump_lib.cc
+++ b/aos/events/timing_report_dump_lib.cc
@@ -369,7 +369,7 @@
 }
 
 const Channel *TimingReportDump::GetChannel(int index) {
-  CHECK_LT(0, index);
+  CHECK_LE(0, index);
   CHECK_GT(event_loop_->configuration()->channels()->size(),
            static_cast<size_t>(index));
   return event_loop_->configuration()->channels()->Get(index);