Rename visibleToEphemeral to visibleToInstantApps

Test: builds
Test: cts-tradefed run commandAndExit cts-dev -m
CtsAppSecurityHostTestCases -t android.appsecurity.cts.EphemeralTest
Change-Id: Ia173af181ec6206dfa8d1956eb2c4894c43c059e
6 files changed