crypto: header - Fix spelling errors

Fix some spelling mistakes in comments:
cipherntext ==> ciphertext
syncronise ==> synchronise
feeded ==> fed
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

include/crypto/aead.h

@@ -490,7 +490,7 @@ static inline void aead_request_set_callback(struct aead_request *req,
  * The memory structure for cipher operation has the following structure:
  *
  * - AEAD encryption input:  assoc data || plaintext
- * - AEAD encryption output: assoc data || cipherntext || auth tag
+ * - AEAD encryption output: assoc data || ciphertext || auth tag
  * - AEAD decryption input:  assoc data || ciphertext || auth tag
  * - AEAD decryption output: assoc data || plaintext
  *

include/crypto/engine.h

@@ -28,7 +28,7 @@
  * of a failed backlog request
  * crypto-engine, in head position to keep order
  * @list: link with the global crypto engine list
- * @queue_lock: spinlock to syncronise access to request queue
+ * @queue_lock: spinlock to synchronise access to request queue
  * @queue: the crypto queue of the engine
  * @rt: whether this queue is set to run as a realtime task
  * @prepare_crypt_hardware: a request will soon arrive from the queue

include/crypto/hash.h

@@ -458,7 +458,7 @@ int crypto_ahash_finup(struct ahash_request *req);
  *
  * Return:
  * 0		if the message digest was successfully calculated;
- * -EINPROGRESS	if data is feeded into hardware (DMA) or queued for later;
+ * -EINPROGRESS	if data is fed into hardware (DMA) or queued for later;
  * -EBUSY	if queue is full and request should be resubmitted later;
  * other < 0	if an error occurred
  */