Make PRODUCT_BOOT_JARS and PRODUCT_UPDATABLE_BOOT_JARS disjoint.

This is to unify boot jars with system server jars:
PRODUCT_SYSTEM_SERVER_JARS and PRODUCT_UPDATABLE_SYSTEM_SERVER_JARS
do not overlap.

Test: aosp_walleye-userdebug boots

Exempt-From-Owner-Approval: cherry-pick.
Bug: 146363577
Change-Id: Ief8994cc34cb6f7951051313dd66a1334a3a73b4
Merged-In: Ief8994cc34cb6f7951051313dd66a1334a3a73b4
(cherry picked from commit 19ed3a0d)