powerpc: create dts component of i2c to build up an SoC

Provide a common i2c components that we can utilize to
build up the various device tree.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/powerpc/dts/pq3-i2c-1.dtsi b/arch/powerpc/dts/pq3-i2c-1.dtsi
new file mode 100644
index 0000000..5d79b1f
--- /dev/null
+++ b/arch/powerpc/dts/pq3-i2c-1.dtsi
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0+ OR X11
+/*
+ * PQ3 I2C Device Tree stub
+ *
+ * Copyright 2020 NXP
+ */
+i2c@3100 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	cell-index = <1>;
+	compatible = "fsl-i2c";
+	u-boot,dm-pre-reloc;
+	reg = <0x3100 0x100>;
+	interrupts = <43 2 0 0>;
+};