Cleanup: move VINTF fragments into VAPEX

VINTF fragments for Power VAPEX were installed in /vendor/etc as a
workaround when VINTF fragments in VAPEX were not supported.

Bug: n/a
Test: m && launch_cvd
      # power/power-stat services are running
Change-Id: I0243a0bd2f2dd597260f73a3994cf81db213daf7
diff --git a/power/aidl/default/apex/file_contexts b/power/aidl/default/apex/file_contexts
index 3433851..3b7526a 100644
--- a/power/aidl/default/apex/file_contexts
+++ b/power/aidl/default/apex/file_contexts
@@ -1,3 +1,4 @@
 (/.*)?                                                      u:object_r:vendor_file:s0
+/etc(/.*)?                                                  u:object_r:vendor_configs_file:s0
 /bin/hw/android\.hardware\.power-service\.example           u:object_r:hal_power_default_exec:s0
 /bin/hw/android\.hardware\.power\.stats-service\.example    u:object_r:hal_power_stats_default_exec:s0