[SMSHAWK] Selecting the Phaser as controller for Player 1 or 2 will throw an exception

[Glitcholog]

Description
Selecting the Phaser as controller for Player 1 or 2 will throw an exception and prevent playing SMS games unless the config.ini is reseted.

Steps

1. Load any Sega Master System game
2. Go to SMS -> Settings
3. Go to Sync Settings and set either Player 1 or Player 2 controller as the Phaser
4. Doing so will throw the error and prevent playing any SMS unless the config.ini is reseted or changed manually

Output

A core accepted the rom, but threw an exception while loading it:
System.InvalidOperationException: this AxisDict has been built and sealed and may not be mutated
   at BizHawk.Emulation.Common.AxisDict.AssertMutable()
   at BizHawk.Emulation.Cores.Sega.MasterSystem.SMSControllerDeck..ctor(SMSControllerTypes controller1, SMSControllerTypes controller2, Boolean is_GG, Boolean use_keyboard)
   at BizHawk.Emulation.Cores.Sega.MasterSystem.SMS..ctor(CoreComm comm, GameInfo game, Byte[] rom, SmsSettings settings, SmsSyncSettings syncSettings)
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at BizHawk.Emulation.Cores.CoreInventory.Core.Create(ICoreInventoryParameters cip)
   at BizHawk.Client.Common.RomLoader.MakeCoreFromCoreInventory(CoreInventoryParameters cip, String forcedCoreName)

OK

Host environment

• BizHawk 2.8; Win10 Pro 21H2 Intel/Nvidia