fix gamecontrollerdb

[AveyondFly]

a should be 1
b should be 0

Tested with x55

[porschemad911]

Hey, thanks for the PR. Checking what testing you have done? Are you able to do a local build / clean flash on a spare SD card to check whether standalone emulator / emulation station controls need updates as well?

[AveyondFly]

Hey, thanks for the PR. Checking what testing you have done? Are you able to do a local build / clean flash on a spare SD card to check whether standalone emulator / emulation station controls need updates as well?

There is a binary tool called sdljoytest, ssh to the device and just run that sdljoytest command, then press a and b, we will find they are inverted.
The issue has been there for such a long time, really curious if there are real users for those new releases...

[porschemad911]

@AveyondFly taking another look at this. You updated mapping for 2 controller GUIDs, which one is for your X55?