Test documentation typo fixes using codespell tool

Changes:
      - Fix typo in code documentation and test name

Tested: - Using codespell tool.

Change-Id: Ia1b65bddc01a4b1c103af9f2094d87da11c88953
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/lib/common_utils.robot b/lib/common_utils.robot
index c3b217c..2ec9d85 100755
--- a/lib/common_utils.robot
+++ b/lib/common_utils.robot
@@ -345,7 +345,7 @@
     ...          ${targ_file_path}=${EXECDIR}${/}logs${/}
     ...          ${return_data}=${1}
 
-    # If there are muliple system console processes, they will all be stopped.
+    # If there are multiple system console processes, they will all be stopped.
     # If there is no existing log file this keyword will return an error
     # message to that effect (and write that message to targ_file_path, if
     # specified).