Update changelog.

Remove default clause of adau1361.cpp and use -Wswitch-enum
to detect the coverage error.
Issue #7

Author: suikan4github

CHANGELOG.md

@@ -7,6 +7,7 @@ History of the project development
 - [Issue #4](https://github.com/suikan4github/rpp_driver/issues/4) Add gcov support for x86 build. 
 - [Issue #5](https://github.com/suikan4github/rpp_driver/issues/5) Migrate action from hand-made to marketplace.
 - [Issue #6](https://github.com/suikan4github/rpp_driver/issues/6) Add comment string to the assertion.
+- [Issue #7](https://github.com/suikan4github/rpp_driver/issues/7) Remove default clause of adau1361.cpp and use -Wswitch-enum to detect the coverage error.
 - [Issue #8](https://github.com/suikan4github/rpp_driver/issues/8) Remove duplicated assertions in the adau1361lower.cpp.
 
 ### Deprecated