Move OCC keyword to lib for other test power on usage.

Changes:
    - "Verify OCC State" keyword move from tests/test_occ_power.robot
      to lib/open_power_utils.robot.

Change-Id: I2d4032d5bba8ed01e16f35812774720a61035792
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
2 files changed