octeontx2-af: Pass default values incase user did not specify

commit 4afa05809a0f70403ca44ab24cda36c55d20955a from
git@git.assembla.com:cavium/WindRiver.linux.git

Current implementation is such that if user did not specify
parameters like speed/duplex/autoneg its fills AUTONEG_UNKNOWN,
SPEED_UNKNOWN,DUPLEX_UNKNOWN. In this case pass default values
defined in othercase pass user specified values.

Change-Id: I6eabc051ed4a80e9dc597c25d860b456ad92f2bb
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/38065


Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Sunil Kovvuri Goutham <Sunil.Goutham@cavium.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>