Use BackportedFixesProperties for getBackportedFixStatus

Flag: android.os.api_for_backported_fixes
Bug: 308461809
Test: atest CtsOsTestCases:android.os.cts.BuildTest CtsOsTestCases:android.os.cts.BackprotedFixesTest && atest CtsOsTestCasesRavenwood:android.os.cts.BuildTest
Change-Id: I286f13b36faa51a38882e4a57bddaa77b2076709
1 file changed