sepolicy: Allow vendor_init to set vendor_bluetooth_prop

Per DeviceBootTest.SELinuxUncheckedDenialBootTest:

09-17 16:22:22.968     1     1 I auditd  : type=1107 audit(0.0:4): uid=0 auid=4294967295 ses=4294967295 subj=u:r:init:s0 msg='avc:  denied  { set } for property=persist.vendor.service.bdroid.soclog pid=1 uid=0 gid=0 scontext=u:r:vendor_init:s0 tcontext=u:object_r:vendor_bluetooth_prop:s0 tclass=property_service permissive=0'
09-17 16:22:22.968     1     1 I auditd  : type=1107 audit(0.0:5): uid=0 auid=4294967295 ses=4294967295 subj=u:r:init:s0 msg='avc:  denied  { set } for property=persist.vendor.service.bdroid.fwsnoop pid=1 uid=0 gid=0 scontext=u:r:vendor_init:s0 tcontext=u:object_r:vendor_bluetooth_prop:s0 tclass=property_service permissive=0'
09-17 16:22:22.968     1     1 I auditd  : type=1107 audit(0.0:4): uid=0 auid=4294967295 ses=4294967295 subj=u:r:init:s0 msg='avc:  denied  { set } for property=persist.vendor.service.bdroid.soclog pid=1 uid=0 gid=0 scontext=u:r:vendor_init:s0 tcontext=u:object_r:vendor_bluetooth_prop:s0 tclass=property_service permissive=0'
09-17 16:22:22.968     1     1 I auditd  : type=1107 audit(0.0:5): uid=0 auid=4294967295 ses=4294967295 subj=u:r:init:s0 msg='avc:  denied  { set } for property=persist.vendor.service.bdroid.fwsnoop pid=1 uid=0 gid=0 scontext=u:r:vendor_init:s0 tcontext=u:object_r:vendor_bluetooth_prop:s0 tclass=property_service permissive=0'

Test: SELinuxUncheckedDenialBootTest
Bug: 366314934
Flag: EXEMPT bugFix
Change-Id: I1710044f4f79a73818fcb55a97ea6b3d826aea1f

bluetooth/hal_bluetooth_default.te

@@ -14,3 +14,4 @@ userdebug_or_eng(`
 ')
 
 set_prop(hal_bluetooth_default, vendor_bluetooth_prop)
+set_prop(vendor_init, vendor_bluetooth_prop)