ARM: ux500: add some DB8500 DMA channel info

This adds some missing DMA channel information to the disabled
MMC/SD/SDIO blocks number 3 and 5, and notes that the assignment
of MSP channels vary with ASIC variant.
Reviewed-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

arch/arm/boot/dts/ste-dbx5x0.dtsi

@@ -875,6 +875,10 @@
 			reg = <0x80119000 0x1000>;
 			interrupts = <0 59 IRQ_TYPE_LEVEL_HIGH>;
 
+			dmas = <&dma 41 0 0x2>, /* Logical - DevToMem */
+			       <&dma 41 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+
 			clocks = <&prcc_kclk 2 5>, <&prcc_pclk 2 7>;
 			clock-names = "sdi", "apb_pclk";
 
@@ -901,6 +905,10 @@
 			reg = <0x80008000 0x1000>;
 			interrupts = <0 100 IRQ_TYPE_LEVEL_HIGH>;
 
+			dmas = <&dma 43 0 0x2>, /* Logical - DevToMem */
+			       <&dma 43 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+
 			clocks = <&prcc_kclk 3 7>, <&prcc_pclk 3 7>;
 			clock-names = "sdi", "apb_pclk";
 
@@ -929,6 +937,7 @@
 			interrupts = <0 62 IRQ_TYPE_LEVEL_HIGH>;
 			v-ape-supply = <&db8500_vape_reg>;
 
+			/* This DMA channel only exist on DB8500 v1 */
 			dmas = <&dma 30 0 0x10>; /* Logical - MemToDev - HighPrio */
 			dma-names = "tx";
 
@@ -962,6 +971,7 @@
 			interrupts = <0 62 IRQ_TYPE_LEVEL_HIGH>;
 			v-ape-supply = <&db8500_vape_reg>;
 
+			/* This DMA channel only exist on DB8500 v2 */
 			dmas = <&dma 30 0 0x12>; /* Logical - DevToMem - HighPrio */
 			dma-names = "rx";