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/openpower/tests_openbmctool/test_openbmctool_network.robot b/openpower/tests_openbmctool/test_openbmctool_network.robot
index c776edf..f154c9f 100755
--- a/openpower/tests_openbmctool/test_openbmctool_network.robot
+++ b/openpower/tests_openbmctool/test_openbmctool_network.robot
@@ -1,5 +1,5 @@
 *** Settings ***
-Documentation  Verify OBMC tool's network fuctionality.
+Documentation  Verify OBMC tool's network functionality.
 
 
 Library                 String