gitignore: ensure test files not ignored

Found that files like remote_logging_test_address.cpp were missing in
git status. Need to be a bit more granular with the .gitignore on
certain test files.

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I53500326501432f86c5069ce31f95e5738d349e8
diff --git a/.gitignore b/.gitignore
index be5d9e2..ac5d13b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,7 +40,11 @@
 test/*_test_*.log
 test/*_test_*.trs
 test/test-suite.log
-test/*_test_*
+test/remote_logging_test_address
+test/remote_logging_test_config
+test/remote_logging_test_port
+test/serialization_test_path
+test/serialization_test_properties
 test/*_test
 phosphor-rsyslog-config/phosphor-rsyslog-conf
 peltool