Add 'default' for 'switch' block to resolve warning of unhandled enum cases from gcc. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4835 6f19259b-4bc3-4df7-8a09-765794883524
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4693 6f19259b-4bc3-4df7-8a09-765794883524
2. Remove some SMBIOS definitions defined in PxeBc module, use those who are defined in MdePkg. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4495 6f19259b-4bc3-4df7-8a09-765794883524