reorganize pixelstats_vendor

Bug: 202462997
Test: boot with pixelstats_vendor started
Change-Id: I50f1fdeb0efc95b1f4063e1f56b66856c5312879
diff --git a/pixelstats/file_contexts b/pixelstats/file_contexts
new file mode 100644
index 0000000..a899889
--- /dev/null
+++ b/pixelstats/file_contexts
@@ -0,0 +1,3 @@
+# pixelstats binary
+/vendor/bin/pixelstats-vendor           u:object_r:pixelstats_vendor_exec:s0
+