Handle missing dist directory when --skip-apex is used.

Test: rm -r out/dist
      art/build/build-art-module.sh --skip-apex
      packages/modules/ArtPrebuilt/update-art-module-prebuilts.py \
        --local-dist=out/dist --skip-cls --skip-apex
Bug: 172480615
Change-Id: Ia27308b93a288ee3693f2f077698074807023c7a
1 file changed