10805 Fix for 10687 can be improved

*** 35,45 ****
  
  #if defined(DEBUG)
  #define PCIEB_DEBUG pcieb_dbg
  extern void pcieb_dbg(uint_t bit, dev_info_t *dip, char *fmt, ...);
  #else /* DEBUG */
! #define PCIEB_DEBUG(...)
  #endif /* DEBUG */
  
  typedef enum {  /* same sequence as pcieb_debug_sym[] */
          /*  0 */ DBG_ATTACH,
          /*  1 */ DBG_PWR,
--- 35,45 ----
  
  #if defined(DEBUG)
  #define PCIEB_DEBUG pcieb_dbg
  extern void pcieb_dbg(uint_t bit, dev_info_t *dip, char *fmt, ...);
  #else /* DEBUG */
! #define PCIEB_DEBUG(...) (void)(0)
  #endif /* DEBUG */
  
  typedef enum {  /* same sequence as pcieb_debug_sym[] */
          /*  0 */ DBG_ATTACH,
          /*  1 */ DBG_PWR,