1. Refine comments to remove the unrecognized code.
2. Add code to avoid potential data type change.
3. In inf file, add module type to the library class list.
Signed-off-by: ydong10
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12284 6f19259b-4bc3-4df7-8a09-765794883524