FQDN for SDP LeafNode Master devices

FQDN for SDP LeafNode master devices

The FQDNs of all the TMC low devices are updated to comply with ADR-9

Previous FQDN	Updated FQDN
ska_low/tm_leaf_node/sdp_master	low-tmc/leaf-node-sdp/0
ska_mid/tm_leaf_node/sdp_master	mid-tmc/leaf-node-sdp/0