ARM: dts: dra7: Fix McASP3 node regarding to clocks

McASP node needs to list all mandatory clocks: gfclk and ahclkx
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra7.dtsi

@@ -1459,8 +1459,8 @@
 			interrupt-names = "tx", "rx";
 			dmas = <&sdma_xbar 133>, <&sdma_xbar 132>;
 			dma-names = "tx", "rx";
-			clocks = <&mcasp3_ahclkx_mux>;
-			clock-names = "fck";
+			clocks = <&mcasp3_aux_gfclk_mux>, <&mcasp3_ahclkx_mux>;
+			clock-names = "fck", "ahclkx";
 			status = "disabled";
 		};