Fixed the issue of dependencyTag in prebuilt.go

Directly using blueprint.BaseDependencyTag might cause issues because
if other modules also use blueprint.BaseDependencyTag, the
different type of modules will be mixed when fetched based on Tag.

Test: m -j out/soong/build.ninja
Change-Id: I290ca2eea063e5daa4f572985b105b958fa1d0fd