Revert "arm: dts: at91: Fix boolean properties with values"

This reverts commit 0dc23d1a8e17, which caused another regression
as the pinctrl code actually expects an integer value of 0 or 1
rather than a simple boolean property.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

[ upstream commit: adee8aa22a9298148b3f86a83a7940e7a3329ad9 ]
diff --git a/src/arm/at91-kizbox3-hs.dts b/src/arm/at91-kizbox3-hs.dts
index f7d90cf..2799b2a 100644
--- a/src/arm/at91-kizbox3-hs.dts
+++ b/src/arm/at91-kizbox3-hs.dts
@@ -225,7 +225,7 @@
 		pinctrl_pio_io_reset: gpio_io_reset {
 			pinmux = <PIN_PB30__GPIO>;
 			bias-disable;
-			drive-open-drain;
+			drive-open-drain = <1>;
 			output-low;
 		};
 		pinctrl_pio_input: gpio_input {
diff --git a/src/arm/at91-kizbox3_common.dtsi b/src/arm/at91-kizbox3_common.dtsi
index 4656646..abe27ad 100644
--- a/src/arm/at91-kizbox3_common.dtsi
+++ b/src/arm/at91-kizbox3_common.dtsi
@@ -211,7 +211,7 @@
 		pinmux = <PIN_PD12__FLEXCOM4_IO0>, //DATA
 		<PIN_PD13__FLEXCOM4_IO1>; //CLK
 		bias-disable;
-		drive-open-drain;
+		drive-open-drain = <1>;
 	};
 
 	pinctrl_pwm0 {