sunxi: Sync dts files with the linux kernel

Copy over all the latest dts changes from mripard/sunxi/dt-for-4.2 ,
this gives us a proper dtsi file for the A33 rather then abusing
sun8i-a23.dtsi for this.

And this replaces our minimal (dummy) sun7i-a20-mk808c and
sun8i-a33-astar-mid756 dts files with proper ones.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
diff --git a/configs/Astar_MID756_defconfig b/configs/Astar_MID756_defconfig
index f334032..b3ae133 100644
--- a/configs/Astar_MID756_defconfig
+++ b/configs/Astar_MID756_defconfig
@@ -12,7 +12,7 @@
 CONFIG_VIDEO_LCD_BL_EN="PH6"
 CONFIG_VIDEO_LCD_BL_PWM="PH0"
 CONFIG_USB_MUSB_SUNXI=y
-CONFIG_DEFAULT_DEVICE_TREE="sun8i-a33-astar-mid756"
+CONFIG_DEFAULT_DEVICE_TREE="sun8i-a33-et-q8-v1.6"
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="CONS_INDEX=5"
 CONFIG_CMD_SETEXPR=y