.gitignore: add new trau_{pcu_ericsson,sync} tests

Change-Id: If7e5a91bc835fecb9c0540dceef4f31139c2146a
diff --git a/.gitignore b/.gitignore
index 5b742e7..f932b39 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,6 +40,8 @@
 tests/subchan_demux/.dirstamp
 tests/subchan_demux/subchan_demux_test
 tests/ipa_recv/ipa_recv_test
+tests/trau_pcu_ericsson/trau_pcu_ericsson_test
+tests/trau_sync/trau_sync_test