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: I3a5360efb5b6a71d5eabb557accf939cd6abc864
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
4 files changed