Add keylayout for SnakeByte iDroid:con

# Copyright (C) 2020 The Android Open Source Project

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# Licensed under the Apache License, Version 2.0 (the "License");

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#      http://www.apache.org/licenses/LICENSE-2.0

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# SnakeByte iDroid:con

key 304   BUTTON_A

key 305   BUTTON_B

key 306   BUTTON_THUMBL

key 307   BUTTON_X

key 308   BUTTON_Y

key 309   BUTTON_THUMBR

key 310   BUTTON_L1

key 311   BUTTON_R1

key 312   BUTTON_L2

key 313   BUTTON_R2

key 314   BUTTON_SELECT

key 315   BUTTON_START

axis 0x00 X

axis 0x01 Y

axis 0x02 Z

axis 0x03 RX

axis 0x04 RY

axis 0x05 RZ

axis 0x10 HAT_X

axis 0x11 HAT_Y