Fix javac build

Add --multi-dex to LOCAL_DX_FLAGS where it is enabled for jack.

Test: m -j ANDROID_COMPILE_WITH_JACK=false FrameworksWifiTests
Change-Id: I62f89cbb450d3c00226c90dd6a699640916a201a
(cherry picked from commit 77ee246d77504184c094776805b942f282366add)
1 file changed
tree: da76bec086bbd805b13930e0cf8e753cf8098fba
  1. service/
  2. PREUPLOAD.cfg