vendor: google: file_contexts: keep sepolicy in current folder

because device.mk don't include pixel-common-device.mk,
we must keep it in device folder

Bug: 157908868
Test: build and capture trace
Change-Id: I5350885d57e80126f6bf7f896cff38d546dedfd8

diff --git a/vendor/google/file_contexts b/vendor/google/file_contexts
index a1202af..5080760 100644
--- a/vendor/google/file_contexts
+++ b/vendor/google/file_contexts

@@ -3,6 +3,7 @@
 /dev/access-metadata                                                        u:object_r:ramoops_device:s0
 /dev/access-ramoops                                                         u:object_r:ramoops_device:s0
 
+/vendor/bin/hw/android\.hardware\.atrace@1\.0-service.pixel                 u:object_r:hal_atrace_default_exec:s0
 /vendor/bin/hw/android\.hardware\.contexthub@1\.1-service\.generic          u:object_r:hal_contexthub_default_exec:s0
 /vendor/bin/hw/android\.hardware\.secure_element@1\.1-service-disabled      u:object_r:hal_secure_element_default_exec:s0
 /vendor/bin/hw/android\.hardware\.power\.stats@1\.0-service\.pixel     u:object_r:hal_power_stats_default_exec:s0