Add rebootescrow HAL into APEX

Bug: 300011388
Test: VtsHalRebootEscrowTargetTest
Change-Id: I34c96187300057196c9bdc098daff2b59f056662
diff --git a/rebootescrow/aidl/default/apex_manifest.json b/rebootescrow/aidl/default/apex_manifest.json
new file mode 100644
index 0000000..8be495b
--- /dev/null
+++ b/rebootescrow/aidl/default/apex_manifest.json
@@ -0,0 +1,4 @@
+{
+    "name": "com.android.hardware.rebootescrow",
+    "version": 1
+}
\ No newline at end of file