Use a copy of dexpreopt.config

Move the dexpreopt.config passed to Soong to out/soong/dexpreopt.config
and let it write a new copy in a rule and pass the path back to make
as DEX_PREOPT_CONFIG_FOR_MAKE.

Bug: 132379813
Test: m checkbuild
Change-Id: Iac29beac3af8864d36d1563ce42bed11b685548d