snapshotctl_log dir readable by dumpstate

Set snapshotctl_log as 0755 so that it is
readable by dumpstate.

Test: bugreport
Bug: 148818798
Change-Id: I6ff52cf0a2e928c74df31aa054ae780f919d6eb0
diff --git a/rootdir/init.rc b/rootdir/init.rc
index d6ce0d2..80db5a7 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -611,7 +611,7 @@
     mkdir /data/misc/installd 0700 root root
     mkdir /data/misc/apexdata 0711 root root
     mkdir /data/misc/apexrollback 0700 root root
-    mkdir /data/misc/snapshotctl_log 0770 root root
+    mkdir /data/misc/snapshotctl_log 0755 root root
     # create location to store pre-reboot information
     mkdir /data/misc/prereboot 0700 system system