gitignore: Update to cover test output

Change-Id: I1cff96b64a4bef13a829b1f5898e18a739275b6c
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
diff --git a/.gitignore b/.gitignore
index dcb9f42..25978d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,8 @@
 mboxd
 mboxctl
 cscope.out
+/test/*.o
+
+# Autotools test infrastructure
+*.log
+*.trs