Fix time growing in case of using salt maas.machines state.

We used to get full list of nodes via MAAS API for any operation with maas.
It caused growing run time in case of large envs.
The module is patched to get info of one node only so that we decrease
run time.

Closes-bug: PROD-36199
Change-Id: I2d88dfa5cc95eeb396beed6a01bb6e592dde1c7a
1 file changed