simulateMtuRequest
Simulates an MTU request from the peripheral.
MTU may be changed only once per connection.
This request shall only be sent once during a connection by the client.
Read more in Core Specification v6.2, Vol 3, Part F, Section 3.4.2 MTU Exchange: link(https://w ww.bluetooth.com/wp-content/uploads/Files/Specification/HTML/Core-62/out/en/host/attribute-protocol--att-.html#UUID-a1f22a10-ac5b-9887-badf-54c142565593).
Parameters
mtu
The requested MTU.