reform2/dts: enable SPI2; disable internal RTC in favor of motherboard one

reform2-imx8mq/template-kernel/imx8mq-mnt-reform2.dts

@@ -236,6 +236,16 @@
 		>;
 	};
 
+	// DSE = 45ohms, SRE = FAST, LVTTL = 1
+	pinctrl_ecspi2: ecspi2grp {
+		fsl.pins = <
+			MX8MQ_IOMUXC_ECSPI2_SS0_ECSPI2_SS0	 0x116
+			MX8MQ_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI 0x116
+			MX8MQ_IOMUXC_ECSPI2_MISO_ECSPI2_MISO 0x116
+			MX8MQ_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK 0x116
+		>;
+	};
+
 	pinctrl_pcie0: pcie0grp {
 		fsl,pins = <
 #define GP_PCIE0_RESET		<&gpio5 7 GPIO_ACTIVE_LOW>
@@ -852,6 +862,11 @@
 	};
 };
 
+// we use our own RTC instead
+&snvs_rtc {
+  status = "disabled";
+};
+
 &i2c3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_i2c3>;
@@ -915,3 +930,9 @@
 		};
 	};
 };
+
+&ecspi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	status = "okay";
+};