MIDI: Update registerDeviceCallback link

The deprecated registerDeviceCallback is linking to itself.
This change links it to the new API added in Android T.

Bug: 254685253
Change-Id: Id2df0605059f79127b9ce439080140995b8b64de
Test: m -j 8 ds-docs-switched
Test: Check out/soong/.intermediates/frameworks/base/ds-docs-java