staging: octeon: Add kernel-doc params description

Fix 'No description found for parameter' kernel-doc warnings

Signed-off-by: Cristina Moraru <cristina.moraru09@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index f600247..6aed3cf 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -49,6 +49,8 @@
 
 /**
  * cvm_oct_do_interrupt - interrupt handler.
+ * @cpl: Interrupt number. Unused
+ * @dev_id: Cookie to identify the device. Unused
  *
  * The interrupt occurs whenever the POW has packets in our group.
  *