CA-50926: the "plug_unplugged_pbds" step was being skipped accidentally during master xapi startup.
CA-50926: the "plug_unplugged_pbds" step was being skipped accidentally during master xapi startup.

The wait_for_management_ip_address function is called on a master as well as a slave: prevent the function dying in the master case.

Signed-off-by: David Scott <63c9eb0ea83039690fefa11afe17873ba8278a56@eu.citrix.com>

johnelse/xcp-rrdd,sharady/xcp-networkd,simonjbeaumont/xcp-rrdd,djs55/xcp-networkd,simonjbeaumont/xcp-rrdd,djs55/xcp-rrdd,johnelse/xcp-rrdd,djs55/squeezed,koushikcgit/xcp-networkd,koushikcgit/xcp-rrdd,koushikcgit/xcp-rrdd,koushikcgit/xcp-networkd,djs55/xcp-rrdd,sharady/xcp-networkd,djs55/xcp-networkd,robhoes/squeezed,koushikcgit/xcp-rrdd