Enable OTA updates using inc from meta-updater

Enable OTA updates using inc from meta-updater

The latest meta-updater provides an include file to enable OTA
updates--use that to bring in the relevant configuration.
rvi-sota-client is not pulled in by default, so delete the
IMAGE_INSTALL_remove line.

Change-Id: I148dc1b0156f6ea12a456bd093a32945215852e7
Signed-off-by: Phil Wise <phil@advancedtelematic.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/9801
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
Reviewed-by: Stéphane Desneux <stephane.desneux@iot.bzh>
Reviewed-by: Leon Anavi <leon.anavi@konsulko.com>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>