Add mount utility to minimal image

This change adds the mount utility to the minimal image used
by the device plugin and GFD. This is needed to set up the mounts
for the MPS control daemon.

Signed-off-by: Evan Lezar <elezar@nvidia.com>

Author: elezar

deployments/container/cleanup/cleanup.sh

@@ -52,6 +52,10 @@ microdnf remove -y \
 microdnf remove -y \
     $(rpm -qa | sort | grep -v -f package-names.minimal -e gpg-pubkey)
 
+# We need mount for our init container and install it here.
+# TODO: We need to provide a better way to install this / skip the cleanup of this package.
+microdnf install -y util-linux-core
+
 # We don't want to add third-party content to the base image and only remove packages.
 # We therefore skip running microdnf update here
 # microdnf update