Make otapreopt_chroot setup linker

Without the linker setup we are unable to run dex2oat. This change
mounts a tmpfs for the chroot and uses linkerconfig to fill it in
after the chroot has occurred.

Test: Manual OTA on cuttlefish
Bug: 181182967
Change-Id: Ied4e6f6e367db89720e98f29d4ae22f19c9cb968
1 file changed