Big Switch: Call correct method in watchdog

Updates the consistency watchdog fuction to call
the correct rest method.

Closes-Bug: #1328321
Change-Id: I86ce0af36f6764a3f1e789602cef52758caedc8b
(cherry picked from commit c8bdff1533e54787d9a3dd98fe57a1e2e0d82e73)
Merge "Big Switch: Call correct method in watchdog" into stable/icehouse