crypto: octeontx2: sync with upstream driver

commit  df83991c92d293f31695f76ab359724998d43570 from
https://git.assembla.com/cavium/WindRiver.linux.git

This patch syncs CPT PF driver with upstreamed CPT PF
driver.

Signed-off-by: Srujana Challa <schalla@marvell.com>
Change-Id: If19a9cd94da158658bfd5accac8fc51e9a376afd
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/50776
Reviewed-by: Jerin Jacob Kollanukkaran <jerinj@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Tested-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
[RQ: Add miss function from SDK.]
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>