arm: zynq: cse_qspi: Fix overwriting spi-rx-bus-width property

spi-rx-bus-width property is part of flash, so it should be moved
to flash node from qspi node. This patch fixes the incorrect read
of spi-rx-bus-width property by moving it to flash node.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/zynq-cse-qspi-single.dts b/arch/arm/dts/zynq-cse-qspi-single.dts
index 3252d6a..0d680df 100644
--- a/arch/arm/dts/zynq-cse-qspi-single.dts
+++ b/arch/arm/dts/zynq-cse-qspi-single.dts
@@ -7,6 +7,6 @@
 
 #include "zynq-cse-qspi.dtsi"
 
-&qspi {
+&flash0 {
 	spi-rx-bus-width = <4>;
 };
diff --git a/arch/arm/dts/zynq-cse-qspi.dtsi b/arch/arm/dts/zynq-cse-qspi.dtsi
index 2b16946..65af408 100644
--- a/arch/arm/dts/zynq-cse-qspi.dtsi
+++ b/arch/arm/dts/zynq-cse-qspi.dtsi
@@ -59,7 +59,7 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			num-cs = <1>;
-			flash@0 {
+			flash0: flash@0 {
 				compatible = "n25q128a11";
 				reg = <0x0>;
 				spi-tx-bus-width = <1>;