Add CAS HAL APEX

The new apex replaces android.hardware.cas-service.example.

Bug: 297467514
Test: atest CtsMediaMiscTestCases:MediaCasTest
Change-Id: I802ab0fe8ffbefd6c1ff9343f6046701fa94029f
diff --git a/cas/aidl/default/cas-default.rc b/cas/aidl/default/cas-default.rc
index 5a60368..0ac7fe5 100644
--- a/cas/aidl/default/cas-default.rc
+++ b/cas/aidl/default/cas-default.rc
@@ -1,4 +1,4 @@
-service vendor.cas-default /vendor/bin/hw/android.hardware.cas-service.example
+service vendor.cas-default /apex/com.android.hardware.cas/bin/hw/android.hardware.cas-service.example
     interface aidl android.hardware.cas.IMediaCasService/default
     class hal
     user media