service: Fix passing stack variable as reference value

BDADDR_ANY cannot be return as it uses stack allocation:

Conditional jump or move depends on uninitialised value(s)
   at 0x170E47: sdp_record_remove (sdpd-database.c:269)
   by 0x17071A: remove_record_from_server (sdpd-service.c:290)
   by 0x14D416: exit_callback (service.c:131)
   by 0x124396: service_filter (watch.c:486)
   by 0x12405A: message_filter (watch.c:554)
   by 0x4F63A35: dbus_connection_dispatch (in /usr/lib64/libdbus-1.so.3.5.6)
   by 0x122EE7: message_dispatch (mainloop.c:76)
   by 0x4C7B3BA: ??? (in /usr/lib64/libglib-2.0.so.0.3200.4)
   by 0x4C7A824: g_main_context_dispatch (in /usr/lib64/libglib-2.0.so.0.3200.4)
   by 0x4C7AB57: ??? (in /usr/lib64/libglib-2.0.so.0.3200.4)
   by 0x4C7AF51: g_main_loop_run (in /usr/lib64/libglib-2.0.so.0.3200.4)
   by 0x1225B1: main (main.c:551)
 Uninitialised value was created by a stack allocation
   at 0x1705B0: add_record_to_server (sdpd-service.c:235)

Conditional jump or move depends on uninitialised value(s)
   at 0x4A0AD21: bcmp (mc_replace_strmem.c:889)
   by 0x4C959E0: g_slist_find_custom (in /usr/lib64/libglib-2.0.so.0.3200.4)
   by 0x17C059: manager_find_adapter (manager.c:291)
   by 0x170E8F: sdp_record_remove (sdpd-database.c:270)
   by 0x17071A: remove_record_from_server (sdpd-service.c:290)
   by 0x14D416: exit_callback (service.c:131)
   by 0x124396: service_filter (watch.c:486)
   by 0x12405A: message_filter (watch.c:554)
   by 0x4F63A35: dbus_connection_dispatch (in /usr/lib64/libdbus-1.so.3.5.6)
   by 0x122EE7: message_dispatch (mainloop.c:76)
   by 0x4C7B3BA: ??? (in /usr/lib64/libglib-2.0.so.0.3200.4)
   by 0x4C7A824: g_main_context_dispatch (in /usr/lib64/libglib-2.0.so.0.3200.4)
 Uninitialised value was created by a stack allocation
   at 0x1705B0: add_record_to_server (sdpd-service.c:235)
1 file changed