Add and enable flag for writing appcomppat system properties

Currently, init always writes a copy of system properties to
/dev/__properties__/appcompat_override. This behavior is now conditional
on this flag. This flag is being enabled to keep current behavior the
same.

Bug: 331307495
Test: manual
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:eace1752a33f6de99375b374756617b96a3013c7)
Merged-In: I0807597f26b31aab416aa3a0a19918e9d6869695
Change-Id: I0807597f26b31aab416aa3a0a19918e9d6869695
3 files changed
tree: 57279fbdec8dc8c8e15c544214fa636ae90e5e07
  1. aconfig/
  2. build_config/
  3. build_flags.scl
  4. OWNERS
  5. release_config_map.mk