rapidio: fix kerneldoc warnings after DMA support was added

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Cc: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/rio.h

@@ -236,6 +236,7 @@ enum rio_phy_type {
  * @phys_efptr: RIO port extended features pointer
  * @name: Port name string
  * @priv: Master port private data
+ * @dma: DMA device associated with mport
  */
 struct rio_mport {
 	struct list_head dbells;	/* list of doorbell events */
@@ -404,7 +405,7 @@ union rio_pw_msg {
 
 #ifdef CONFIG_RAPIDIO_DMA_ENGINE
 
-/**
+/*
  * enum rio_write_type - RIO write transaction types used in DMA transfers
  *
  * Note: RapidIO specification defines write (NWRITE) and