arm: dts: mediatek: Get rid of mediatek, larb for MM nodes

After adding device_link between the IOMMU consumer and smi, the
mediatek,larb is unnecessary now.

CC: Matthias Brugger <[e-mail]>
Signed-off-by: Yong Wu <[e-mail]>
Signed-off-by: Allen-KH Cheng <[e-mail]>
Reviewed-by: Evan Green <[e-mail]>
Tested-by: Frank Wunderlich <[e-mail]> # BPI-R2/MT7623
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Matthias Brugger <[e-mail]>

arch/arm/boot/dts/mt2701.dtsi

···
 		clock-names = "jpgdec-smi",
 			      "jpgdec";
 		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
-		mediatek,larb = <&larb2>;
 		iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
 			 <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
 	};
···
 		clocks =  <&imgsys CLK_IMG_VENC>;
 		clock-names = "jpgenc";
 		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
-		mediatek,larb = <&larb2>;
 		iommus = <&iommu MT2701_M4U_PORT_JPGENC_RDMA>,
 			 <&iommu MT2701_M4U_PORT_JPGENC_BSDMA>;
 	};

arch/arm/boot/dts/mt7623n.dtsi

···
 		clock-names = "jpgdec-smi",
 			      "jpgdec";
 		power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
-		mediatek,larb = <&larb2>;
 		iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
 			 <&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
 	};
···
 		interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_LOW>;
 		clocks = <&mmsys CLK_MM_DISP_OVL>;
 		iommus = <&iommu MT2701_M4U_PORT_DISP_OVL_0>;
-		mediatek,larb = <&larb0>;
 	};
 
 	rdma0: rdma@14008000 {
···
 		interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_LOW>;
 		clocks = <&mmsys CLK_MM_DISP_RDMA>;
 		iommus = <&iommu MT2701_M4U_PORT_DISP_RDMA>;
-		mediatek,larb = <&larb0>;
 	};
 
 	wdma@14009000 {
···
 		interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_LOW>;
 		clocks = <&mmsys CLK_MM_DISP_WDMA>;
 		iommus = <&iommu MT2701_M4U_PORT_DISP_WDMA>;
-		mediatek,larb = <&larb0>;
 	};
 
 	bls: pwm@1400a000 {
···
 		interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_LOW>;
 		clocks = <&mmsys CLK_MM_DISP_RDMA1>;
 		iommus = <&iommu MT2701_M4U_PORT_DISP_RDMA1>;
-		mediatek,larb = <&larb0>;
 	};
 
 	dpi0: dpi@14014000 {