ticket:10222: Fix failing tests in NumberFormatTest.

git-svn-id: http://source.icu-project.org/repos/icu/icu@33916 251d0590-4201-4cf1-90de-194747b24ca1
ticket:10222: TimeUnitFormat to look under units/duration for time units instead of just units.

git-svn-id: http://source.icu-project.org/repos/icu/icu@33917 251d0590-4201-4cf1-90de-194747b24ca1