staging: vt6655: Update function description

The function vt6655_get_current_tsf has been updated while its
description has not. Update the description to correctly reflect
what it does.
Signed-off-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/20220529160211.GA5805@nam-dellSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6655/card.c

@@ -723,9 +723,9 @@ u64 CARDqGetTSFOffset(unsigned char byRxRate, u64 qwTSF1, u64 qwTSF2)
  *  In:
  *      priv         - The adapter to be read
  *  Out:
- *      qwCurrTSF       - Current TSF counter
+ *      none
  *
- * Return Value: true if success; otherwise false
+ * Return Value: Current TSF counter
  */
 u64 vt6655_get_current_tsf(struct vnt_private *priv)
 {