staging: ccree: Use __func__ instead of function name

Fixed following checkpatch.pl warning:
	WARNING: Prefer using '"%s...", __func__' to using
the function's name, in a string

It is prefered to use '%s & __func__' instead of function
name for logging.
Signed-off-by: Karthik Tummala <karthik@techveda.org>
Acked-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/ccree/ssi_aead.c

@@ -1886,7 +1886,7 @@ static int config_gcm_context(struct aead_request *req)
 				(req->cryptlen - ctx->authsize);
 	__be32 counter = cpu_to_be32(2);
 
-	SSI_LOG_DEBUG("config_gcm_context() cryptlen = %d, req->assoclen = %d ctx->authsize = %d\n", cryptlen, req->assoclen, ctx->authsize);
+	SSI_LOG_DEBUG("%s() cryptlen = %d, req->assoclen = %d ctx->authsize = %d\n", __func__, cryptlen, req->assoclen, ctx->authsize);
 
 	memset(req_ctx->hkey, 0, AES_BLOCK_SIZE);
 
@@ -2198,7 +2198,7 @@ static int ssi_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
 	int rc = 0;
 
-	SSI_LOG_DEBUG("ssi_rfc4106_gcm_setkey()  keylen %d, key %p\n", keylen, key);
+	SSI_LOG_DEBUG("%s()  keylen %d, key %p\n", __func__, keylen, key);
 
 	if (keylen < 4)
 		return -EINVAL;
@@ -2216,7 +2216,7 @@ static int ssi_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
 	int rc = 0;
 
-	SSI_LOG_DEBUG("ssi_rfc4543_gcm_setkey()  keylen %d, key %p\n", keylen, key);
+	SSI_LOG_DEBUG("%s()  keylen %d, key %p\n", __func__, keylen, key);
 
 	if (keylen < 4)
 		return -EINVAL;