ARM: dts: imx6ull-dhcom: Remove /omit-if-no-ref/ from node usdhc1-pwrseq

Remove /omit-if-no-ref/ from node usdhc1-pwrseq, because if the compile
flag -@ (include symbols) is used the node will always be there. In this
case, GPIO H is not released and therefore cannot be used. Therefore,
remove this node manually from the corresponding devicetree file and
don't rely on /omit-if-no-ref/.
Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som-cfg-sdcard.dtsi

@@ -14,10 +14,12 @@
  */
 
 /*
- * To use usdhc1 as SD card, the WiFi node must be deleted.
+ * To use usdhc1 as SD card, the WiFi node must be deleted. The associated
+ * pwrseq node is also deleted in order to ensure that GPIO H is released.
  * BT is also not available, so remove BT from the UART node.
  */
 /delete-node/ &brcmf;
+/delete-node/ &usdhc1_pwrseq;
 /delete-node/ &bluetooth;
 
 / {

arch/arm/boot/dts/nxp/imx/imx6ull-dhcom-som.dtsi

@@ -52,7 +52,7 @@ reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
 	};
 
 	/* SoM with WiFi/BT: WiFi pin WL_REG_ON is connected to a DHCOM GPIO */
-	/omit-if-no-ref/ usdhc1_pwrseq: usdhc1-pwrseq {
+	usdhc1_pwrseq: usdhc1-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>; /* GPIO H */
 	};