staging:vt6656:card.c:Fix comment block issue

Fix "Block comments use * on subsequent lines" and "Block comments use
*/ on trailing lines" warnings thrown by checkpatch.pl

Signed-off-by: Rithvik Patibandla <rithvikp98@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>