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: I7282eed4dd7df45ffd15d5e93820b7f3013252b7
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/physical.hpp b/physical.hpp
index 4194c9e..87bf5b5 100644
--- a/physical.hpp
+++ b/physical.hpp
@@ -52,7 +52,7 @@
         // need to save what the micro-controller currently has.
         setInitialState();
 
-        // Read led color from enviroment and set it in DBus.
+        // Read led color from environment and set it in DBus.
         setLedColor(color);
 
         // We are now ready.
@@ -66,7 +66,7 @@
      */
     Action state(Action value) override;
 
-    /** @brief Overriden State Property Getter function
+    /** @brief Overridden State Property Getter function
      *
      *  @return  -  One of OFF / ON / BLINK
      */
@@ -80,7 +80,7 @@
     /** @brief The value that will assert the LED */
     unsigned long assert{};
 
-    /** @brief reads sysfs and then setsup the parameteres accordingly
+    /** @brief reads sysfs and then setup the parameters accordingly
      *
      *  @return None
      */