orinoco : Replace function name in string with __func__

Replace hard coded function name with __func__, to
improve robustness and to conform to the Linux kernel coding
style. Issue found using checkpatch.
Signed-off-by: Keyur Patel <iamkeyur96@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/intersil/orinoco/mic.c

@@ -18,16 +18,16 @@ int orinoco_mic_init(struct orinoco_private *priv)
 {
 	priv->tx_tfm_mic = crypto_alloc_shash("michael_mic", 0, 0);
 	if (IS_ERR(priv->tx_tfm_mic)) {
-		printk(KERN_DEBUG "orinoco_mic_init: could not allocate "
-		       "crypto API michael_mic\n");
+		printk(KERN_DEBUG "%s: could not allocate "
+		       "crypto API michael_mic\n", __func__);
 		priv->tx_tfm_mic = NULL;
 		return -ENOMEM;
 	}
 
 	priv->rx_tfm_mic = crypto_alloc_shash("michael_mic", 0, 0);
 	if (IS_ERR(priv->rx_tfm_mic)) {
-		printk(KERN_DEBUG "orinoco_mic_init: could not allocate "
-		       "crypto API michael_mic\n");
+		printk(KERN_DEBUG "%s: could not allocate "
+		       "crypto API michael_mic\n", __func__);
 		priv->rx_tfm_mic = NULL;
 		return -ENOMEM;
 	}
@@ -52,7 +52,7 @@ int orinoco_mic(struct crypto_shash *tfm_michael, u8 *key,
 	int err;
 
 	if (tfm_michael == NULL) {
-		printk(KERN_WARNING "orinoco_mic: tfm_michael == NULL\n");
+		printk(KERN_WARNING "%s: tfm_michael == NULL\n", __func__);
 		return -1;
 	}