staging: rtl8192e: fix coding style issues (merge broken strings)

Fix checkpatch.pl warnings:
- 'WARNING: quoted string split across lines'
- 'WARNING: break quoted strings at a space character'

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index 283ba8b..ea8488f 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -575,8 +575,9 @@
 	if ((!ieee->sta_wake_up) ||
 	    (!ieee->enter_sleep_state) ||
 	    (!ieee->ps_is_queue_empty)) {
-		RTLLIB_DEBUG(RTLLIB_DL_ERR, "%s(): PS mode is tried to be use "
-			     "but driver missed a callback\n\n", __func__);
+		RTLLIB_DEBUG(RTLLIB_DL_ERR,
+			     "%s(): PS mode is tried to be use but driver missed a callback\n\n",
+			     __func__);
 		return -1;
 	}