Instead of setting these values to 0, use the same settings as used in
lib/sdk/Libraries/BTLE/stack/ble-host/sources/stack/cfg/cfg_stack.c from
the Cordio SDK instead of 0.

In my small test these value sare not use in the normal pairing process,
so I think this is not fixing any problem.

Fixes: 4107bd22

 ("hack(ble): Temporarily silence a warning")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>