drivers/net/ethernet: Fix (nearly-)kernel-doc comments for various functions

Fix incorrect start markers, wrapped summary lines, missing section
breaks, incorrect separators, and some name mismatches.  Delete
a few that are content-free.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 928913c..c503fbe 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -3218,7 +3218,7 @@
 }
 
 /**
- * nv_update_linkspeed: Setup the MAC according to the link partner
+ * nv_update_linkspeed - Setup the MAC according to the link partner
  * @dev: Network device to be configured
  *
  * The function queries the PHY and checks if there is a link partner.