This makes it possible to select CONFIG_CRYPTO_LIB_ARC4 directly. We 
need this to be able to compile this into the kernel and make use of it 
from backports.

--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1151,7 +1151,7 @@ config CRYPTO_ANUBIS
 	  <http://www.larc.usp.br/~pbarreto/AnubisPage.html>
 
 config CRYPTO_LIB_ARC4
-	tristate
+	tristate "ARC4 cipher library"
 
 config CRYPTO_ARC4
 	tristate "ARC4 cipher algorithm"