staging/rtl8192u: use same indent for switch and case

Fix the checkpatch error "switch and case should be at the same indent"

Signed-off-by: Sebastian Hahn <snsehahn@cip.cs.fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8192u/r8192U_wx.c b/drivers/staging/rtl8192u/r8192U_wx.c
index c1ab5cf..c904aa8 100644
--- a/drivers/staging/rtl8192u/r8192U_wx.c
+++ b/drivers/staging/rtl8192u/r8192U_wx.c
@@ -710,12 +710,12 @@
 		#define CONF_WEP104 0x14
 
 		switch(wrqu->encoding.flags & IW_ENCODE_INDEX){
-			case 0: key_idx = ieee->tx_keyidx; break;
-			case 1:	key_idx = 0; break;
-			case 2:	key_idx = 1; break;
-			case 3:	key_idx = 2; break;
-			case 4:	key_idx	= 3; break;
-			default: break;
+		case 0: key_idx = ieee->tx_keyidx; break;
+		case 1:	key_idx = 0; break;
+		case 2:	key_idx = 1; break;
+		case 3:	key_idx = 2; break;
+		case 4:	key_idx	= 3; break;
+		default: break;
 		}
 
 		if(wrqu->encoding.length==0x5){