rtlwifi: Convert RT_TRACE macro to use ##__VA_ARGS__

Consolidate printks to avoid possible message interleaving
and reduce the object size.

Remove unnecessary RT_TRACE parentheses.

Miscellaneous typo and grammar fixes.
Add missing newlines to formats.
Remove duplicate KERN_DEBUG prefixes.
Coalesce formats.
Align arguments.

$ size drivers/net/wireless/rtlwifi/built-in.o*
   text    data     bss     dec     hex filename
 594841   55333  129680  779854   be64e drivers/net/wireless/rtlwifi/built-in.o.new
 607022   55333  138720  801075   c3933 drivers/net/wireless/rtlwifi/built-in.o.old

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/rc.c b/drivers/net/wireless/rtlwifi/rc.c
index 539df66d..4f560d6 100644
--- a/drivers/net/wireless/rtlwifi/rc.c
+++ b/drivers/net/wireless/rtlwifi/rc.c
@@ -251,7 +251,7 @@
 	rate_priv = kzalloc(sizeof(struct rtl_rate_priv), gfp);
 	if (!rate_priv) {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-			 ("Unable to allocate private rc structure\n"));
+			 "Unable to allocate private rc structure\n");
 		return NULL;
 	}