phosphor-power: srcrev bump 5d4a9c78ac..1992083a94

B. J. Wyman (1):
      psu-ng: Add accessor to get GPIO line name

Jim Wright (1):
      pseq: Add power control dbus server interface

Shawn McCarney (2):
      regulators: Add phase faults to ActionEnvironment
      regulators: Implement log_phase_fault action

Change-Id: I2472fe53906f434083a8029d64680090d79a6541
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>