Dedupe mk rules in core_minimal.mk and core_tiny.mk.

These two are the only ones inheriting base.mk, and were largely similar.
This CL moves all the shared stuff up one level into base.mk.

One thing not de-duped yet is the PRODUCT_SYSTEM_SERVER_JARS variable,
as the order of that is significant.

Also sort various lists that were ordered arbitrarily.

Bug: 80410283
Test: diffed output of multiproduct_kati with aosp/703385 patched
Change-Id: Iddffd6982df039f5daa8be345de338ba11c63c10
Merged-In: Iddffd6982df039f5daa8be345de338ba11c63c10