crypto: omap-aes - fix spelling mistake "Encryptio" -> "Encryption"

Trivial fix to spelling mistake in pr_err message
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/omap-aes-gcm.c

@@ -214,7 +214,7 @@ static int do_encrypt_iv(struct aead_request *req, u32 *tag, u32 *iv)
 		}
 		/* fall through */
 	default:
-		pr_err("Encryptio of IV failed for GCM mode");
+		pr_err("Encryption of IV failed for GCM mode");
 		break;
 	}