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: I153217f4ae8454e3546a59da9fcfe3f83fd04b39
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/include/util.hpp b/include/util.hpp
index e1050ed..5f96c0d 100644
--- a/include/util.hpp
+++ b/include/util.hpp
@@ -41,7 +41,7 @@
 
 /** @brief finds the predicted life left for a eMMC device
  *  @param[in] sysfsPath - The path to the linux sysfs interface
- *  @return the life remaing for the emmc, as a percentage.
+ *  @return the life remaining for the emmc, as a percentage.
  */
 uint8_t findPredictedMediaLifeLeftPercent(const std::string& sysfsPath);