Remove syslib and migrate to lib

Changes:
   - Move files to lib and rename to align to lib naming
   - Update test suites using it.

Tested:
  - Test on sandbox with robot --dryrun to make sure
    the linkage is not broken.

Change-Id: I586c06dd3c4e544d87d130c3331886016af66437
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/openpower/test_nmi_interface.robot b/openpower/test_nmi_interface.robot
index 8adf6e2..c1eab5a 100644
--- a/openpower/test_nmi_interface.robot
+++ b/openpower/test_nmi_interface.robot
@@ -7,7 +7,7 @@
 Resource        ../lib/secureboot/secureboot.robot
 Resource        ../lib/state_manager.robot
 Library         ../lib/bmc_ssh_utils.py
-Library         ../syslib/utils_os.py
+Library         ../lib/os_utilities.robot
 
 Test Teardown   FFDC On Test Case Fail
 Suite Teardown  Redfish.Logout