[automerger skipped] Copy boot dex jars from prebuilt...

[automerger skipped] Copy boot dex jars from prebuilt art-bootclasspath-fragment if preferred am: a0089ec7 -s ours am: b6a4c957 -s ours

am skip reason: Merged-In I35b37355170546daf6ecac2134d1ca9a73d0e3bc with SHA-1 a0089ec7 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/15027897

Change-Id: Ic472f0a75acae1fc5d089610d6c9c3a08a5375f6