Revert "Revert "Default to nostripping for non /system preopt""

Added logic to not preopt tests. Re-enabled usage of
my_module_multilib since this is referenced in setup_one_odex.

Bug: 110156979
Test: make
Test: forrest first boot tests

This reverts commit 9234def3.

Change-Id: I6a6ea2cd0024c33c0cfbd60f3a1f4ad5b1609dc8