This work affects only Debian. This is part of a fix for a bootstrap
issue.
/drbd directory is currently created during bootstrap by puppet.
Ostree doesn't allow changes to root mountpoint / at runtime.
Create /drbd with correct permissions at package install time.
Tests on AIO-SX:
PASS: build-pkgs, build-image, install
PASS: bootstrap without ostree unlock goes past the issue
Story: 2009964
Task: 45533
Signed-off-by: Dan Voiculeasa <dan.voiculeasa@windriver.com>
Change-Id: Ic22ff6650c7f46b25e1079c237028b5572383a56