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/libpldmresponder/oem_handler.hpp b/libpldmresponder/oem_handler.hpp
index 3b14ea8..68c844b 100644
--- a/libpldmresponder/oem_handler.hpp
+++ b/libpldmresponder/oem_handler.hpp
@@ -28,7 +28,7 @@
      *                           equal to composite sensor count in number
      *
      *  @return - Success or failure in getting the states. Returns failure in
-     *            terms of PLDM completion codes if fetching atleast one state
+     *            terms of PLDM completion codes if fetching at least one state
      *            fails
      */
     virtual int getOemStateSensorReadingsHandler(
@@ -51,7 +51,7 @@
      *  @param[in] effecterId - Effecter id
      *
      *  @return - Success or failure in setting the states.Returns failure in
-     *            terms of PLDM completion codes if atleast one state fails to
+     *            terms of PLDM completion codes if at least one state fails to
      *            be set
      */
     virtual int oemSetStateEffecterStatesHandler(