Replace with stubs only for Android non-native-bridge targets

Host tools and native-bridge targets should be built on top of original
module rather than stubs. This change updates DepsMutator not to replace
to API surface stubs if target is not Android or target is
native-bridge.

Bug: N/A
Test: CF vendor build succeeded
Change-Id: I97eb98d9e63dcf15632468aa32211a14d48986a0