ARM: dts: sun6i: Update A31/A31s dts(i) files from Linux-v4.18-rc3

Update all A31/A31s devicetree dtsi and dtsi files from
Linux-v4.18-rc3 with below commit:
commit b240b419db5d624ce7a5a397d6f62a1a686009ec
Merge: 9c2dd8405c0c 518d2f43c358
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Thu Apr 5 21:18:09 2018 -0700

    Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/dts/sun6i-reference-design-tablet.dtsi b/arch/arm/dts/sun6i-reference-design-tablet.dtsi
index 0c43430..4e72e4f 100644
--- a/arch/arm/dts/sun6i-reference-design-tablet.dtsi
+++ b/arch/arm/dts/sun6i-reference-design-tablet.dtsi
@@ -44,7 +44,6 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
-#include <dt-bindings/pinctrl/sun4i-a10.h>
 
 / {
 	aliases {
@@ -70,24 +69,21 @@
 	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_e708_q1>;
 	vmmc-supply = <&reg_dcdc1>;
 	bus-width = <4>;
-	cd-gpios = <&pio 0 8 GPIO_ACTIVE_HIGH>; /* PA8 */
-	cd-inverted;
+	cd-gpios = <&pio 0 8 GPIO_ACTIVE_LOW>; /* PA8 */
 	status = "okay";
 };
 
 &pio {
 	mmc0_cd_pin_e708_q1: mmc0_cd_pin@0 {
-		allwinner,pins = "PA8";
-		allwinner,function = "gpio_in";
-		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
-		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+		pins = "PA8";
+		function = "gpio_in";
+		bias-pull-up;
 	};
 
 	usb0_id_detect_pin: usb0_id_detect_pin@0 {
-		allwinner,pins = "PA15";
-		allwinner,function = "gpio_in";
-		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
-		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+		pins = "PA15";
+		function = "gpio_in";
+		bias-pull-up;
 	};
 };