selinux prebuilts: ignore .pyc files

Change-Id: Ic0ca8592061de69b93d7d6e7ef050089b23e3f3d
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..0d20b64
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.pyc