Put authsecret example in VAPEX

authsecret example instance is put in APEX.

Bug: 296522705
Test: authsecret HAL starts from APEX in cuttlefish/goldfish
Merged-In: I226fd57fb1ec5c8da98c07292431df055e6078d7
Change-Id: I226fd57fb1ec5c8da98c07292431df055e6078d7
diff --git a/authsecret/aidl/default/file_contexts b/authsecret/aidl/default/file_contexts
new file mode 100644
index 0000000..8e79f26
--- /dev/null
+++ b/authsecret/aidl/default/file_contexts
@@ -0,0 +1,3 @@
+(/.*)?                                                      u:object_r:vendor_file:s0
+/etc(/.*)?                                                  u:object_r:vendor_configs_file:s0
+/bin/hw/android\.hardware\.authsecret-service\.example      u:object_r:hal_authsecret_default_exec:s0
\ No newline at end of file