Temporarily allow otapreopt_chroot to query ro.cold_boot_done prop

Test: presubmit
Bug: 172829167
Bug: 165948777
Change-Id: If7ead4ec43496795e31432db8d3493dbc6fc5e07
diff --git a/private/otapreopt_chroot.te b/private/otapreopt_chroot.te
index e2bc33e..37149ab 100644
--- a/private/otapreopt_chroot.te
+++ b/private/otapreopt_chroot.te
@@ -72,3 +72,8 @@
 
 # Allow to access the linker through the symlink.
 allow otapreopt_chroot postinstall_file:lnk_file r_file_perms;
+
+# Allow otapreopt_chroot to read ro.cold_boot_done prop.
+# This is a temporary solution to make sure that otapreopt_chroot doesn't block indefinetelly.
+# TODO(b/165948777): remove this once otapreopt_chroot is migrated to libapexmount.
+get_prop(otapreopt_chroot, cold_boot_done_prop)