Add prop to control PM appcompat

We need to explicitly disable app compat so that apk
alignment status can be detected.

Test: m
Bug: 381949453
Change-Id: Ief0df075a7b65c8c2300c5f9fed57b16092b70b9
diff --git a/private/property_contexts b/private/property_contexts
index 721f88b..b67fbff 100644
--- a/private/property_contexts
+++ b/private/property_contexts
@@ -762,6 +762,8 @@
 
 pm.dexopt.                                              u:object_r:future_pm_prop:s0 prefix
 
+pm.16kb.app_compat.disabled                             u:object_r:pm_16kb_app_compat_prop:s0 exact bool
+
 ro.apk_verity.mode u:object_r:apk_verity_prop:s0 exact int
 
 ro.bluetooth.a2dp_offload.supported u:object_r:bluetooth_a2dp_offload_prop:s0 exact bool