ARM: dts: stm32: add sdmmc sleep config for STM32MP135F-DK

Add sleep properties in pinctrl config for SDMMC1.
Signed-off-by: NYann Gautier <yann.gautier@foss.st.com>
Signed-off-by: NAlexandre Torgue <alexandre.torgue@foss.st.com>

arch/arm/boot/dts/stm32mp135f-dk.dts

@@ -38,9 +38,10 @@
 };
 
 &sdmmc1 {
-	pinctrl-names = "default", "opendrain";
+	pinctrl-names = "default", "opendrain", "sleep";
 	pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_clk_pins_a>;
 	pinctrl-1 = <&sdmmc1_b4_od_pins_a &sdmmc1_clk_pins_a>;
+	pinctrl-2 = <&sdmmc1_b4_sleep_pins_a>;
 	broken-cd;
 	disable-wp;
 	st,neg-edge;