dpaa_eth: copy timestamp fields to new skb in A-050385 workaround

dpaa_eth: copy timestamp fields to new skb in A-050385 workaround

[ Upstream commit 07500a6085806d97039ebcba8d9b8b29129f0106 ]

The timestamp fields should be copied to new skb too in
A-050385 workaround for later TX timestamping handling.

Fixes: 3c68b8fffb48 ("dpaa_eth: FMan erratum A050385 workaround")
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Link: https://lore.kernel.org/r/20201201075258.1875-1-yangbo.lu@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>