Add new dexopt flag to control CompactDex generation

Add a new flag to control CompactDex generation, this allows more
flexibility regarding when compact dex is generated.

The goal is to generate it for cmd package compile.

Bug: 63756964
Bug: 74245837
Test: adb shell /data/nativetest64/installd_dexopt_test/installd_dexopt_test

Change-Id: I0674f50bbb7413b67e6fbab3199f5c7e78ec875c