framework-wifi: Move java_api_finder plugin to build rule with srcs

java_api_finder doesn't work if it is added to a
build rule without any `srcs`.

Bug: 147193292
Test: compiles
Change-Id: I26a1da2d41cbe661588f721bf23dac3d26bc38e9
1 file changed
tree: f47bb6a996fc3e454e333db2170a24a8a65f16f5
  1. framework/
  2. OsuLogin/
  3. OWNERS