Ignore code coverage files

When running the unit test framework, code coverage files are generated
which should be ignored

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I94efe8be794cddf35b96247eb40f0c1a518f7071
diff --git a/.gitignore b/.gitignore
index 41ce902..743960e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,3 +49,4 @@
 Makefile
 .deps
 *-libtool
+/*.gc*