changelog: fix non x86 compilation and defaults

changelog: fix non x86 compilation and defaults

PPC still fails at
../drivers/net/mlx5/mlx5_flow_tcf.c: In function ‘flow_tcf_validate’:
../drivers/net/mlx5/mlx5_flow_tcf.c:2017:20: error: incompatible types when assigning to type ‘__vector __bool int’ {aka ‘__vector(4) __bool int’} from type ‘int’
     in_port_id_set = 1;
                    ^

This is fixed in -rc3, maybe you could push an -rc3 on top of this?

Change-Id: I87df7f75ee1c886a94b305d2f81126a6ad3ded00
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>