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: I5d504a19c51a5ba843b09f3bcfa3f6472af6cd22
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/sysfs/util.cpp b/sysfs/util.cpp
index 5b12a30..8266040 100644
--- a/sysfs/util.cpp
+++ b/sysfs/util.cpp
@@ -24,7 +24,7 @@
 {
 
 /*
- * Replace "**" in the provided path string with an appopriate concrete path
+ * Replace "**" in the provided path string with an appropriate concrete path
  * component (the first directory entry found, on the assumption that there
  * will only be a single candidate).
  */