ARM: dts: am43xx-epos-evm: Add sleep pinmux for mmc1

Add sleep pinmux for mmc1.
Signed-off-by: NAndrew F. Davis <afd@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/am43x-epos-evm.dts

@@ -295,12 +295,18 @@
 			>;
 		};
 
-		mmc1_pins: pinmux_mmc1_pins {
+		mmc1_pins_default: pinmux_mmc1_pins_default {
 			pinctrl-single,pins = <
 				AM4372_IOPAD(0x960, PIN_INPUT | MUX_MODE7) /* spi0_cs1.gpio0_6 */
 			>;
 		};
 
+		mmc1_pins_sleep: pinmux_mmc1_pins_sleep {
+			pinctrl-single,pins = <
+				AM4372_IOPAD(0x960, DS0_PIN_OUTPUT_PULLUP | PIN_INPUT | MUX_MODE7)
+			>;
+		};
+
 		qspi1_pins_default: qspi1_pins_default {
 			pinctrl-single,pins = <
 				AM4372_IOPAD(0x87c, PIN_INPUT_PULLUP | MUX_MODE3)
@@ -440,8 +446,9 @@
 	status = "okay";
 	vmmc-supply = <&vmmcsd_fixed>;
 	bus-width = <4>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&mmc1_pins>;
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&mmc1_pins_default>;
+	pinctrl-1 = <&mmc1_pins_sleep>;
 	cd-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
 };