Ignore 'parse_seccomp_policy'.

Bug: None
Test: 'make parse_seccomp_policy'; 'git status' doesn't show the binary.
Change-Id: Iaca8b92214f51e0199f9c3d77df4f0c040aa455c
diff --git a/.gitignore b/.gitignore
index 3013935..248dbe5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
 libminijail_unittest
 minijail0
 syscall_filter_unittest
+parse_seccomp_policy
 
 # common.mk TEST().
 *.test