config: common: include private bits if existing

Change-Id: Ib02aa6fceed5167342363771ebdb0884a2bdf659
Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..fd1a426
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/private/