video: fbdev: sm712fb.c: fix unaligned block comments warning

Fixed unaligned block comments warning generated by scripts/checkpatch.pl:
  WARNING: Block comments should align the * on each line
Signed-off-by: Lynn Lei <lynnl.wit@gmail.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

drivers/video/fbdev/sm712fb.c

@@ -33,8 +33,8 @@
 #include "sm712.h"
 
 /*
-* Private structure
-*/
+ * Private structure
+ */
 struct smtcfb_info {
 	struct pci_dev *pdev;
 	struct fb_info *fb;