ticket:9101: minor fixes for ucol_getRules() & ucol_getLocale() and some C tests

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/markus@34615 251d0590-4201-4cf1-90de-194747b24ca1
ticket:9101: drop B2700 from expected result of ucol_getShortDefinitionString(variableTop set to letter A)

git-svn-id: http://source.icu-project.org/repos/icu/icu/branches/markus@34616 251d0590-4201-4cf1-90de-194747b24ca1