rtlwifi: Standardize RT_PRINT_DATA macro and uses

Use a single printk(KERN_DEBUG to emit the header line
to avoid any possible output interleaving.

Remove unnecessary parentheses from the calling uses.
Standardize header arg without trailing \n or colon.
Fix a few pairwiase/pairwise typos.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
index 9e0c8fc..487ee90 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
@@ -331,7 +331,7 @@
 				 ("add one entry\n"));
 			if (is_pairwise) {
 				RT_PRINT_DATA(rtlpriv, COMP_SEC, DBG_LOUD,
-					      "Pairwiase Key content :",
+					      "Pairwise Key content",
 					      rtlpriv->sec.pairwise_key,
 					      rtlpriv->sec.
 					      key_len[PAIRWISE_KEYIDX]);