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: I1e57d16dd4e8655d698e272e6ee347d80e2056ba
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
4 files changed