make ro.boottime. properties accessible to hal clients

- hal clients checking hal_binderization prop also need to check
  ro.boottime.persistent_properties.

bug: 35178781
Test: reboot
Change-Id: I413c663537dc118e0492416e3e5a2af721b18107

public/te_macros

@@ -291,6 +291,7 @@ allow hwservicemanager $1:process getattr;
 # stability). getService must also check for data to be mounted
 # if the vintf promises the hal will be registered over hwbinder.
 get_prop($1, hal_binderization_prop)
+get_prop($1, boottime_prop)
 get_prop($1, vold_prop)
 # rw access to /dev/hwbinder and /dev/ashmem is presently granted to
 # all domains in domain.te.