Merge "Pass --preloaded-classes to boot image compilation." am: 1a9df260 am:...

Merge "Pass --preloaded-classes to boot image compilation." am: 1a9df260 am: d06a2b08 am: feb00d55

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2024665

Change-Id: I105fcb8757171c12ecb32879a41b9849bb2b3360