ARM: dts: imx7d-pico: Fix the 'tuning-step' property

stable inclusion
from stable-5.10.43
commit 67ae12a57b342e6dc5de6fae3fb7cda493abc257
bugzilla: 109284
CVE: NA

--------------------------------

[ Upstream commit 0e2fa495 ]

According to Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml, the
correct name of the property is 'fsl,tuning-step'.

Fix it accordingly.
Signed-off-by: NFabio Estevam <festevam@gmail.com>
Fixes: f13f571a ("ARM: dts: imx7d-pico: Extend peripherals support")
Signed-off-by: NShawn Guo <shawnguo@kernel.org>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

arch/arm/boot/dts/imx7d-pico.dtsi

@@ -351,7 +351,7 @@
 	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
 	cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
 	bus-width = <4>;
-	tuning-step = <2>;
+	fsl,tuning-step = <2>;
 	vmmc-supply = <&reg_3p3v>;
 	wakeup-source;
 	no-1-8-v;