Update FatPkg revision from 0.2 to 0.3.

Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2-fatdriver2/code/trunk/FatPkg@83 efd2e655-3735-4b16-a529-16bfa2dd702b
Update FatPkg.dsc copyright year.

Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2-fatdriver2/code/trunk/FatPkg@84 efd2e655-3735-4b16-a529-16bfa2dd702b