imx: ventana: add support for GW5905

imx: ventana: add support for GW5905

The GW5905 is single-board tablet computer based on the i.MX6 SoC with the
following peripheral set:
 - eMMC flash (boot device)
 - microSD expansion
 - LVDS display connector for off-board 3D+1C with PWM backlight
   and I2C based touch controller
 - MIPI camera connector supporting the TRULY CM8487-B500SA-E (OV5640)
 - ublox EMMY-W1 WiFi/Bluetooth/NFC module (SDIO/UART)
 - ublox ZOE-M8Q GPS
 - LSM9DS1 9-DOF IMU
 - 1x 1-lane miniPCIe socket with USB 2.0
 - Gateworks System Controller
 - Audio jack with TLV320AIC Audio Codec, Speaker AMP
   and TSA227E Headphone detect
 - MAX8607 3-mode LED camera flash
 - DECT ULE module
 - FUSB302 USB-C PD and ISL9238 Battery charger

Signed-off-by: Tim Harvey <tharvey@gateworks.com>