Wait for data without sysprop listeners.

add_sysprop_change_callback requires piping report_sysprop_change over
binder (and hwbinder). This was (and still is) a temporary solution
until the persist.hal.binderizatoin flag can be passed through kernel
argument.

Currently working with partners to replace these flags with kernel
arguments.

Test: lights/nfc work on with ag/1835881.
Test: perfboot: (three runs) 19902ms avg with the above CL, 19479ms with
Change-Id: I240cf100dc070be43ca49dd9856fb7603231ffd2
1 file changed