To support virtual routers the kernel needs a collection of modules
that provide advanced L3 capabilities
This change creates the new l3-routing-modules-config package to have
the list in /etc/modules-load.d/ and available on a fresh install
Test Plan:
[PASS] do a fresh install and verify modules availability in the
kernel with lsmod
Story: 2011455
Task: 52407
Change-Id: Ia0fc953602b4495b1bb004f990814907084e761c
Signed-off-by: Andre Kantek <andrefernandozanella.kantek@windriver.com>