export init.svc.bugreport

Vendor need to hook bugreport propery as well as dumpstatez.
This CL exports it.

Test: Confirmed verndor can get property trigger hook manually
Bug: 118718191
Change-Id: I64a0e38716fb863ccd8923c6c41a776ea341f2d1
Signed-off-by: Minchan Kim <minchan@google.com>

public/property_contexts

@@ -172,6 +172,7 @@ ro.aac_drc_effect_type u:object_r:exported2_default_prop:s0 exact int
 drm.64bit.enabled u:object_r:exported2_default_prop:s0 exact bool
 dumpstate.dry_run u:object_r:exported_dumpstate_prop:s0 exact bool
 hal.instrumentation.enable u:object_r:exported2_default_prop:s0 exact bool
+init.svc.bugreport u:object_r:exported2_default_prop:s0 exact string
 init.svc.console u:object_r:exported2_default_prop:s0 exact string
 init.svc.dumpstatez u:object_r:exported2_default_prop:s0 exact string
 init.svc.mediadrm u:object_r:exported2_default_prop:s0 exact string