MIPS: BMIPS: Add support SDHCI device nodes

Adds SDHCI device nodes to BCM7xxx MIPS based SoCs.

Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Reviewed-by: 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/14002/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/boot/dts/brcm/bcm7360.dtsi

@@ -330,5 +330,13 @@
 				#phy-cells = <0>;
 			};
 		};
+
+		sdhci0: sdhci@410000 {
+			compatible = "brcm,bcm7425-sdhci";
+			reg = <0x410000 0x100>;
+			interrupt-parent = <&periph_intc>;
+			interrupts = <82>;
+			status = "disabled";
+		};
 	};
 };