mako: persist partition mounts as read-only

persist partition have to mount as read-only.
and remove duplicated permission for persist partition.

Change-Id: I75af235bd1f4cf4da84e91e0f6097bff6eb4b495
diff --git a/fstab.mako b/fstab.mako
index 0363825..d0932b8 100644
--- a/fstab.mako
+++ b/fstab.mako
@@ -7,4 +7,4 @@
 /dev/block/platform/msm_sdcc.1/by-name/tombstones   /tombstones     ext4    nosuid,nodev,barrier=1                                          wait
 /dev/block/platform/msm_sdcc.1/by-name/cache        /cache          ext4    noatime,nosuid,nodev,barrier=1,data=ordered                     wait
 /dev/block/platform/msm_sdcc.1/by-name/userdata     /data           ext4    noatime,nosuid,nodev,barrier=1,data=ordered,noauto_da_alloc     wait,encryptable=/dev/block/platform/msm_sdcc.1/by-name/metadata
-/dev/block/platform/msm_sdcc.1/by-name/persist      /persist        ext4    nosuid,nodev,barrier=1,data=ordered,nodelalloc                  wait
+/dev/block/platform/msm_sdcc.1/by-name/persist      /persist        ext4    ro,barrier=1                                                    wait
diff --git a/init.mako.rc b/init.mako.rc
index af2ef1d..3f56f40 100644
--- a/init.mako.rc
+++ b/init.mako.rc
@@ -156,7 +156,6 @@
     # Mounting of persist is moved to 'on emmc-fs' and 'on fs' sections
     # We chown/chmod /persist again so because mount is run as root + defaults
     chown system system /persist
-    chmod 0771 /persist
     chmod 0664 /sys/devices/platform/msm_sdcc.1/polling
     chmod 0664 /sys/devices/platform/msm_sdcc.2/polling
     chmod 0664 /sys/devices/platform/msm_sdcc.3/polling