macsec: Fix Macsec packet number attribute print

macsec: Fix Macsec packet number attribute print

Currently Macsec print routines uses a 32 bit print routine
to print out the value of the packet number (PN) attribute, a
miss use of the 32 bit print routine is causing a miss print of
only the 32 least significant bit (LSB) of an extended packet
number (XPN) which is a 64 bit attribute.

Fixes: 6ce23b7c2d79 ("macsec: add Extended Packet Number support")
Signed-off-by: Emeel Hakim <ehakim@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>