ARM: dts: mmp2: Add Audio SRAM

This memory is region is where the two-channel audio DMA can pump sound
samples into the SSPA's internal FIFO.

Link: https://lore.kernel.org/r/20200718205019.184927-6-lkundrak@v3.skSigned-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/mmp2.dtsi

@@ -413,6 +413,15 @@ ssp4: spi@d4039000 {
 			};
 		};
 
+		asram: sram@e0000000 {
+			compatible = "mmio-sram";
+			reg = <0xe0000000 0x10000>;
+			ranges = <0 0xe0000000 0x10000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			status = "disabled";
+		};
+
 		soc_clocks: clocks {
 			compatible = "marvell,mmp2-clock";
 			reg = <0xd4050000 0x2000>,