The config.yaml file suggests None as one
of the possible values of the directive console-access-protocol,
this is wrongly evaluated as a string in the console_attributes
function, which causes the charm to install the pacemaker
resource even when is not required (console-access-protocol = None).
Change-Id: I367b7fd813e044bc6eedca687e837e8adab2dd40
Closes-Bug: #1697693
Depends-On: I98ebbf9f2c7582fae5f466dfc1d224bf66e38a24
Signed-off-by: Jorge Niedbalski <jorge.niedbalski@canonical.com>