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: I0d3acfeb002b6e3e8356b4f1c2a960c53ecadf2e
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/ipmbbridged.cpp b/ipmbbridged.cpp
index 1907c75..526983a 100644
--- a/ipmbbridged.cpp
+++ b/ipmbbridged.cpp
@@ -362,7 +362,7 @@
         goto end;
     }
 
-    /* Substract first byte len size from total frame length */
+    /* Subtract first byte len size from total frame length */
     r--;
 
     if ((r < ipmbMinFrameLength) || (r > ipmbMaxFrameLength))
@@ -370,7 +370,7 @@
         goto end;
     }
 
-    // valiate the frame
+    // validate the frame
     if (!isFrameValid(ipmbFrame, r))
     {
         goto end;