No controller crash

If you have no controller connected (or at least the DS4) when you start a game, RPCS3 crashes.
It's a bit annoying just to test intro and other stuff.

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Fatal error
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Unhandled Win32 exception 0xC0000094.
Exception address: 0000000000539803.
Instruction address: 0000000000539803.
Function address: 0000000000539370 (base+0x529370).
Module name: 'rpcs3.exe'.
Module base: 0000000000010000.
RPCS3 image base: 0000000000010000.

HOW TO REPORT ERRORS: Check the FAQ, README, other sources.
Please, don't send incorrect reports. Thanks for understanding.
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OK
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You're selecting ds4 input, if you don't have any controller connected, why not using Keyboard input

You're selecting ds4 input, if you don't have any controller connected, why not using Keyboard input

The DS4 turn itself off after some time.
Well...you're right, I'll switch to keyboard for the main config, and DS4 for the games that I play.
But anyway I think that it could be handled better.