Use DEXPREOPT_BOOTCLASSPATH_DEX_FILES to build boot_profile_jars.zip

The core libraries are no longer put in /system/framework. Replace the
system path with the dexpreopt input path.

Test: launch taimen_nopreload-userdebug; m
Bug: 123313750
Change-Id: I6232c36d39fb818a302cb4b6cb61e91b44b28da1