staging: rtl8712: braces should be used on all arms

Fix all instances of the following checkpatch.pl check:
CHECK: braces {} should be used on all arms of this statement

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/rtl8712/usb_halinit.c b/drivers/staging/rtl8712/usb_halinit.c
index b4ae11a..944df85 100644
--- a/drivers/staging/rtl8712/usb_halinit.c
+++ b/drivers/staging/rtl8712/usb_halinit.c
@@ -285,8 +285,9 @@
 			/* Reset TxDMA */
 			r8712_write8(padapter, CR, val8|_TXDMA_EN);
 		}
-	} else
+	} else {
 		ret = _FAIL;
+	}
 	return ret;
 }