Fixes a crash when the instant app is launching

The provider of an instant app is allowed to declare itself
defined in other split apk using the `splitName` attribute.
Platform did not aware this attribut and try to install a
provider which is defined in an non-installed split apk. The
ClassNotFoundException is thrown during the app is launching.

Bug: 178053703
Test: atest SplitTests
Change-Id: I3de73487fc8fdb2b4735882ad4c3e5481274da0b