Port comdb2db_get_dbhosts changes

[chands10]

To help us review your pull request, please consider providing an overview of the following:

• What is the type of the change (bug fix, feature, documentation and etc.) ?
• What are the current behavior and expected behavior, if this is a bugfix ?
• What are the steps required to reproduce the bug, if this is a bugfix ?
• What is the current behavior and new behavior, if this is a feature change or enhancement ?
• [Optional] Why is the new behavior better than the current behavior, if this is a feature change ?

[roborivers]

Coding style check: Success ✓.
Cbuild submission: Error ⚠.
Regression testing: Success ✓.

The first 10 failing tests are:
maxtable [core dumped]
insert_lots_ssl_generated
insert_lots
consumer_non_atomic_default_consumer_generated
sc_transactional_rowlocks_generated
skipscan
sc_downgrade
reco-ddlk-sql

[roborivers]

Coding style check: Success ✓.
Cbuild submission: Success ✓.
Regression testing: 0/0 tests failed ⚠.

[chands10]

rebased

[roborivers]

Cbuild submission: Success ✓.
Regression testing: Success ✓.

The first 10 failing tests are:
silogdel [core dumped]
sc_resume_logicalsc_generated
consumer_non_atomic_default_consumer_generated
sc_transactional_rowlocks_generated
truncatesc_offline_generated
reco-ddlk-sql
lock_views
guid

[chands10]

/adhoc-test lock_views guid

[roborivers]

Cbuild submission: Success ✓.
Regression testing: Success ✓.

[mohitkhullar]

lgtm

[chands10]

Thanks Mohit!!