staging: rtl8192u: add '*' on subsequent lines in block comment

Linux kernel coding style for block comments uses a column of '*' on the
left side.
Fix block comment by adding '*' on subsequent lines as reported by
checkatch.pl script.
Signed-off-by: Khadija Kamran <kamrankhadijadj@gmail.com>
Link: https://lore.kernel.org/r/3a581aae65a152ce41fdd2db667574eba1783113.1679945728.git.kamrankhadijadj@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8192U_dm.c

 // SPDX-License-Identifier: GPL-2.0
 /*++
-Copyright-c Realtek Semiconductor Corp. All rights reserved.
-
-Module Name:
-	r8192U_dm.c
-
-Abstract:
-	HW dynamic mechanism.
---*/
+ * Copyright-c Realtek Semiconductor Corp. All rights reserved.
+ *
+ * Module Name:
+ *	r8192U_dm.c
+ *
+ * Abstract:
+ *	HW dynamic mechanism.
+ *--
+ */
 #include "r8192U.h"
 #include "r8192U_dm.h"
 #include "r8192U_hw.h"