Fix spelling mistakes using codespell

This commit corrects various spelling mistakes throughout the
repository. The corrections were made automatically using `codespell`[1]
tool.

[1]: https://github.com/codespell-project/codespell

Change-Id: I539a0c5baa63be240fc1c76367c0af338dd89c7b
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/oem/ibm/libpldmresponder/utils.hpp b/oem/ibm/libpldmresponder/utils.hpp
index ac7549f..bfdd251 100644
--- a/oem/ibm/libpldmresponder/utils.hpp
+++ b/oem/ibm/libpldmresponder/utils.hpp
@@ -30,7 +30,7 @@
  *  @param[in] sock - unix socket
  *  @param[in] buf -  data buffer
  *  @param[in] blockSize - size of data to write
- *  @return   on success retruns  0
+ *  @return   on success returns  0
  *            on failure returns -1
 
  */