Rename aocx.IAoc to aocx.IAoc/default to support stable AIDL

Also add framework_compatibility_matrix.xml for aoc stable AIDL

Bug: 380993517
Flag: EXEMPT HAL interface change
Test: local build
Change-Id: I8a41ff1bdd4ffc8e5d7da08879738aa11fb81813
diff --git a/aoc/sepolicy/service_contexts b/aoc/sepolicy/service_contexts
index de31e51..80346c8 100644
--- a/aoc/sepolicy/service_contexts
+++ b/aoc/sepolicy/service_contexts
@@ -1 +1 @@
-aocx.IAocx    u:object_r:aocx:s0
+aocx.IAocx/default    u:object_r:aocx:s0