mgr/cephadm: preserve original hostnames where required

mgr/cephadm: preserve original hostnames where required

Retain the original hostname for CRUSH removal operations so the
commands continue to match existing CRUSH bucket names after hostname
normalization.

Also normalize DaemonDescription.hostname when loading the persisted
host cache to ensure scheduler hostname comparisons remain consistent
with normalized inventory and HostCache entries.

Fixes: https://tracker.ceph.com/issues/78426
Signed-off-by: Shubha Jain <SHUBHA.JAIN1@ibm.com>