block: allow init.rc to tune max discard size

Init.rc requires to limit max discard to avoid long latencies.

Bug: 148209614
Change-Id: Idf3b295ac15efd5edf979ca896fdf826b9fc3c99
Merged-In: Idf3b295ac15efd5edf979ca896fdf826b9fc3c99
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
diff --git a/prebuilts/api/29.0/public/init.te b/prebuilts/api/29.0/public/init.te
index 6857ff9..6fd4780 100644
--- a/prebuilts/api/29.0/public/init.te
+++ b/prebuilts/api/29.0/public/init.te
@@ -364,6 +364,7 @@
   sysfs_leds
   sysfs_power
   sysfs_fs_f2fs
+  sysfs_dm
 }:file w_file_perms;
 
 allow init {
diff --git a/public/init.te b/public/init.te
index 6857ff9..6fd4780 100644
--- a/public/init.te
+++ b/public/init.te
@@ -364,6 +364,7 @@
   sysfs_leds
   sysfs_power
   sysfs_fs_f2fs
+  sysfs_dm
 }:file w_file_perms;
 
 allow init {