Deprecated commands in dcmanager are not allowed to execute
when requested, but their help was displayed.
In this commit, the dcmanager help <command> is disabled for
subcloud reinstall, subcloud-deploy show, subcloud-deploy upload,
subcloud reconfig and subcloud restore.
Test plan:
1. PASS: Run dcmanager help <command> displays the relevant
deprecation message
2. PASS: Run dcmanager <command> displays the relevant
deprecation message and does not execute
Closes-Bug: 2064294
Change-Id: I2cbe4b79d83b157413fd46337f4437f0a27717f6
Signed-off-by: Raphael Lima <Raphael.Lima@windriver.com>