The binder_transfer_binder hook was changed in the kernel, obsoleting
the receive permission and changing the target of the transfer permission.
Update the binder-related policy to match the revised permission checking.

Change-Id: I1ed0dadfde2efa93296e967eb44ca1314cf28586
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>

New property_contexts file for property selabel backend.
New property.te file with property type declarations.
New property_service security class and set permission.
Allow rules for setting properties.