Remove autoreconf generated files

Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Matt Turner <mattst88@gmail.com>
diff --git a/bin/.gitignore b/bin/.gitignore
index 5cf62d9..04c0a1c 100644
--- a/bin/.gitignore
+++ b/bin/.gitignore
@@ -1,3 +1,6 @@
+config.guess
+config.sub
+install-sh
 /depcomp
 /missing
 ylwrap