crypto: aead - add crypto_aead_driver_name()

Add crypto_aead_driver_name(), which is analogous to
crypto_skcipher_driver_name().
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

include/crypto/aead.h

@@ -191,6 +191,11 @@ static inline void crypto_free_aead(struct crypto_aead *tfm)
 	crypto_destroy_tfm(tfm, crypto_aead_tfm(tfm));
 }
 
+static inline const char *crypto_aead_driver_name(struct crypto_aead *tfm)
+{
+	return crypto_tfm_alg_driver_name(crypto_aead_tfm(tfm));
+}
+
 static inline struct aead_alg *crypto_aead_alg(struct crypto_aead *tfm)
 {
 	return container_of(crypto_aead_tfm(tfm)->__crt_alg,