Adjust build script for portability

Change build-e2mgr-ubuntu.sh shell script to skip installing NNG
(already in the base image) and to use sudo when invoking dpkg to
install RMR libraries.  This allows the same steps to be run in a
docker build AND sonar analysis job without duplication.

Signed-off-by: Lott, Christopher (cl778h) <cl778h@att.com>
Change-Id: I88f230bb0b54ad3e28042341ea351b3bd217c109
2 files changed