Allow access to /data/security/current symbolic link.

Change-Id: Ic500af7b9dac6a9b6401e99c3d162913e9989d9b
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

te_macros

@@ -239,7 +239,7 @@ allow $1 kernel:security setbool;
 define(`security_access_policy', `
 allow $1 security_file:dir r_dir_perms;
 allow $1 security_file:file r_file_perms;
-allow $1 security_file:lnk_file read;
+allow $1 security_file:lnk_file r_file_perms;
 allow $1 selinuxfs:dir r_dir_perms;
 allow $1 selinuxfs:file r_file_perms;
 allow $1 rootfs:dir r_dir_perms;
@@ -259,6 +259,7 @@ security_access_policy($1)
 unix_socket_connect($1, property, init)
 allow $1 security_file:dir create_dir_perms;
 allow $1 security_file:file create_file_perms;
+allow $1 security_file:lnk_file { create rename unlink };
 allow $1 security_prop:property_service set;
 ')
 
@@ -271,6 +272,7 @@ define(`mmac_manage_policy', `
 unix_socket_connect($1, property, init)
 allow $1 security_file:dir create_dir_perms;
 allow $1 security_file:file create_file_perms;
+allow $1 security_file:lnk_file { create rename unlink };
 allow $1 security_prop:property_service set;
 ')