Rename VcnStatusCallback#onVcnStatusChanged.

Per API Council feedback, VcnStatusCallback#onVcnStatusChanged is
renamed to VcnStatusCallback#onStatusChanged.

Bug: 182345902
Test: atest FrameworksVcnTests CtsVcnTestCases
Change-Id: Ie0277c5f053e1802aa98240618a9d9e8aa6d9d09
3 files changed