MIPS: BMIPS: Add support NAND device nodes

Adds NAND device nodes to BCM7xxx MIPS based SoCs.

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Jonas Gorski <jonas.gorski@gmail.com>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14003/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/boot/dts/brcm/bcm97362svmb.dts

@@ -1,6 +1,7 @@
 /dts-v1/;
 
 /include/ "bcm7362.dtsi"
+/include/ "bcm97xxx-nand-cs1-bch4.dtsi"
 
 / {
 	compatible = "brcm,bcm97362svmb", "brcm,bcm7362";
@@ -57,6 +58,10 @@
 	status = "okay";
 };
 
+&nand {
+	status = "okay";
+};
+
 &sata {
 	status = "okay";
 };