crypto: cast5/cast6 - move lookup tables to shared module

CAST5 and CAST6 both use same lookup tables, which can be moved shared module
'cast_common'.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/crypto/cast6.h b/include/crypto/cast6.h
index 157af6f..32b60eb 100644
--- a/include/crypto/cast6.h
+++ b/include/crypto/cast6.h
@@ -3,6 +3,7 @@
 
 #include <linux/types.h>
 #include <linux/crypto.h>
+#include <crypto/cast_common.h>
 
 #define CAST6_BLOCK_SIZE 16
 #define CAST6_MIN_KEY_SIZE 16
@@ -20,9 +21,4 @@
 void __cast6_encrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);
 void __cast6_decrypt(struct cast6_ctx *ctx, u8 *dst, const u8 *src);
 
-extern const u32 cast6_s1[256];
-extern const u32 cast6_s2[256];
-extern const u32 cast6_s3[256];
-extern const u32 cast6_s4[256];
-
 #endif