NimBLE_extended_server encrypt

[enhany]

Hello.

When using NimBLE_extended_server example with:

	NimBLEDevice::setSecurityIOCap(BLE_HS_IO_NO_INPUT_OUTPUT);
	NimBLEDevice::setSecurityAuth(BLE_SM_PAIR_AUTHREQ_BOND | BLE_SM_PAIR_AUTHREQ_MITM | BLE_SM_PAIR_AUTHREQ_SC);

then not possible to bond. Any bond request just disconnect client.

[h2zero]

Please try again with only setting bond flag: NimBLEDevice::setSecurityAuth(BLE_SM_PAIR_AUTHREQ_BOND);