Store uncompressed and aligned DEX files for java libs in APEXes.

Test: aosp_walleye-userdebug boots.

Test: In internal, cherry-picked this CL, walleye-userdebug boots.

Test: In internal, ensure that DEX file wifi-service.jar in the
  com.android.wifi APEX is now stored uncompressed:

    $ zipinfo out/target/product/walleye/apex/com.android.wifi/javalib/wifi-service.jar
    Archive:  out/target/product/walleye/apex/com.android.wifi/javalib/wifi-service.jar
    Zip file size: 3086879 bytes, number of entries: 3
    -rw----     2.0 fat  3086304 b- stor 08-Jan-01 00:00 classes.dex
    -rw----     2.0 fat      339 b- defN 80-Feb-01 00:00 META-INF/proguard/androidx-annotations.pro
    -rw----     2.0 fat       45 b- defN 08-Jan-01 00:00 META-INF/MANIFEST.MF
    3 files, 3086688 bytes uncompressed, 3086480 bytes compressed:  0.0%

  Before the change it was:

    $ zipinfo out/target/product/walleye/apex/com.android.wifi/javalib/wifi-service.jar
    Archive:  out/target/product/walleye/apex/com.android.wifi/javalib/wifi-service.jar
    Zip file size: 1241938 bytes, number of entries: 3
    -rw----     2.0 fat  3086304 bl defN 08-Jan-01 00:00 classes.dex
    -rw----     2.0 fat      339 b- defN 80-Feb-01 00:00 META-INF/proguard/androidx-annotations.pro
    -rw----     2.0 fat       45 b- defN 08-Jan-01 00:00 META-INF/MANIFEST.MF
    3 files, 3086688 bytes uncompressed, 1241526 bytes compressed:  59.8%

Bug: 148099857
Bug: 146984232

Change-Id: Ia302967b280be85665032cc870c5d5d2419586fc