Clean up .robot files

  - Run rflint on .robot to ensure they conform to the standards.
    Fix the files that don't.
  - Add robot_custom_rules.py file for our repository custom rules.
  - run pycodestyle on new changes.

Change-Id: Idb2b895b81cb00220076a32b413e124980f4057b
Signed-off-by: Joy Onyerikwu <onyekachukwu.joy.onyerikwu@ibm.com>
diff --git a/security/test_bmc_ssh_security.robot b/security/test_bmc_ssh_security.robot
index 6c01096..fae0628 100644
--- a/security/test_bmc_ssh_security.robot
+++ b/security/test_bmc_ssh_security.robot
@@ -36,11 +36,11 @@
     # debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,
     #         aes128-gcm@openssh.com,aes256-gcm@openssh.com
     # debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,
-    #         hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,
-    #         hmac-sha2-256,hmac-sha2-512,hmac-sha1
+    #         hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,
+    #         umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
     # debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,
-    #         hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,
-    #         hmac-sha2-256,hmac-sha2-512,hmac-sha1
+    #         hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,
+    #         umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1
 
     # Example of weak algorithms to check:
     # - encryption: triple-DES ("DES-CBC3").