Unhardcoding salt master name from cluster model.

It may differ from default and should refer to manageable variable

Prod-Related: PROD-29870

Change-Id: I6735e74a97d6beb3f6fa80327ef85fe27e2bf4f8
(cherry-picked from commit d07ce1349db56b97314c0b7baf3e1e126c3eb06f)
4 files changed