Update ordinals.

Use a previously unused value as we will be updating multiple released
branches.
(cherry picked from commit 0737acd2a8cc688902b5151cab5dc6737b82fb96)

util/libeay.num

@@ -3511,6 +3511,7 @@ BIO_set_callback                        3903	EXIST::FUNCTION:
 d2i_ASIdOrRange                         3904	EXIST::FUNCTION:RFC3779
 i2d_ASIdentifiers                       3905	EXIST::FUNCTION:RFC3779
 CRYPTO_memcmp                           3906	EXIST::FUNCTION:
+BN_consttime_swap                       3907	EXIST::FUNCTION:
 SEED_decrypt                            3908	EXIST::FUNCTION:SEED
 SEED_encrypt                            3909	EXIST::FUNCTION:SEED
 SEED_cbc_encrypt                        3910	EXIST::FUNCTION:SEED