sun6i: Add defconfig and dts file for tablets using the inet-q972 PCB

Add a defconfig and dts file for tablets using the generic inet-q972 PCB.

Tablets with this PCB feature a mini-hdmi output, micro-usb usb-host,
micro-usb usb-otg, 3.5mm headphone jack, a micro sd slot,
(mini) power-barrel and an usb wifi module.

This has been tested on a 9.7" 1024x768 qware qw tb9718-qhd tablet.

The dts files are identical to the ones submitted to the upstream kernel.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/configs/inet_q972_defconfig b/configs/inet_q972_defconfig
new file mode 100644
index 0000000..fdbbd6a
--- /dev/null
+++ b/configs/inet_q972_defconfig
@@ -0,0 +1,23 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_MACH_SUN6I=y
+CONFIG_DRAM_CLK=384
+CONFIG_DRAM_ZQ=251
+CONFIG_MMC0_CD_PIN="PA8"
+CONFIG_USB0_VBUS_PIN="AXP0-VBUS-ENABLE"
+CONFIG_USB0_VBUS_DET="AXP0-VBUS-DETECT"
+CONFIG_USB0_ID_DET="PA15"
+CONFIG_AXP_GPIO=y
+CONFIG_VIDEO_LCD_MODE="x:1024,y:768,depth:18,pclk_khz:65000,le:280,ri:20,up:22,lo:8,hs:20,vs:8,sync:3,vmode:0"
+CONFIG_VIDEO_LCD_DCLK_PHASE=0
+CONFIG_VIDEO_LCD_BL_EN="PA25"
+CONFIG_VIDEO_LCD_BL_PWM="PH13"
+CONFIG_DEFAULT_DEVICE_TREE="sun6i-a31s-inet-q972"
+# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SPL=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_FPGA is not set
+CONFIG_AXP_DLDO1_VOLT=3300
+CONFIG_USB_MUSB_HOST=y
+CONFIG_USB_EHCI_HCD=y