By moving HiiLibGetCurrentLanguage to UefiLib, library constructor (depex) can be added back to HiiLib to make sure the execution order is correct.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5939 6f19259b-4bc3-4df7-8a09-765794883524