Filter instant app content providers

Only expose the correct content providers depending upon which
component defines/exposes them.

Change-Id: I283c787165e33d9515068487f83de6d28616b427
Fixes: 35871462
Test: cts-tradefed run commandAndExit cts-dev -m CtsAppSecurityHostTestCases -t android.appsecurity.cts.EphemeralTest