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: I965f52f9eae78bcad39a8d711f99bef7be4cbde0
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/yaml/xyz/openbmc_project/Software/Update.interface.yaml b/yaml/xyz/openbmc_project/Software/Update.interface.yaml
index 4191c1f..b2f11d1 100644
--- a/yaml/xyz/openbmc_project/Software/Update.interface.yaml
+++ b/yaml/xyz/openbmc_project/Software/Update.interface.yaml
@@ -1,10 +1,10 @@
 description: >
-    Interface for performing code update for various firwmare entities.
+    Interface for performing code update for various firmware entities.
 
 methods:
     - name: StartUpdate
       description: >
-          Start a firware update to be performed asynchronously.
+          Start a firmware update to be performed asynchronously.
       parameters:
           - name: Image
             type: unixfd