tls: add 2nd cipher_id, TLS_RSA_WITH_AES_128_CBC_SHA, so far it doesn't work

Good news that TLS_RSA_WITH_AES_256_CBC_SHA256 still works with new code ;)

This change adds inevitable extension to have different sized hashes and AES key sizes.
In libbb, md5_end() and shaX_end() are extended to return result size instead of void -
this helps *a lot* in tls (the cost is ~5 bytes per _end() function).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/md5_sha1_sum.c

@@ -166,7 +166,7 @@ static uint8_t *hash_file(const char *filename, unsigned sha3_width)
 	} context;
 	uint8_t *hash_value;
 	void FAST_FUNC (*update)(void*, const void*, size_t);
-	void FAST_FUNC (*final)(void*, void*);
+	unsigned FAST_FUNC (*final)(void*, void*);
 	char hash_algo;
 
 	src_fd = open_or_warn_stdin(filename);