firmware: octeontx2: minor fixes for PORTM boot cfg

commit 11ea022129987d80cfa621056c5d95fb722f5113 from
git@git.assembla.com:cavium/WindRiver.linux.git

Missing 'static' keyword for some local structs/funcs
Reduced logging inside the init function.

Signed-off-by: Damian Eppel <deppel@marvell.com>
Change-Id: I221c6f2e2dcc293b4c1219f33e58b7159cc1ff5b
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/kernel/linux/+/121026
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Scott Rowberry <rowberry@marvell.com>
Reviewed-by: Chandrakala Chavva <cchavva@marvell.com>
Signed-off-by: Ruiqiang Hao <Ruiqiang.Hao@windriver.com>