init.rc: change the ownership of gc segment info sysfs nodes

Changed the ownership of gc segment info sysfs nodes for Pixelstats
to access these values.

Test: check the ownership of
/dev/sys/fs/by-name/userdata/<gc_segment_mode|gc_reclaimed_segments>
Bug: 182708936
Bug: 225116533
Bug: 229049054
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Change-Id: I444350d6f4898920b6036558eebdb11cf18ddee5
diff --git a/init.hardware.rc b/init.hardware.rc
index 75de40a..b91eac0 100644
--- a/init.hardware.rc
+++ b/init.hardware.rc
@@ -491,6 +491,10 @@
 on property:sys.boot_completed=1
     setprop vendor.setup.power 1
 
+    # Permission for Pixelstats
+    chown system system /dev/sys/fs/by-name/userdata/gc_segment_mode
+    chown system system /dev/sys/fs/by-name/userdata/gc_reclaimed_segments
+
     # Runtime fs tuning
     write /sys/block/sda/queue/nr_requests 128
     write /sys/block/sda/queue/iostats 1