ARM: dts: arria10: Modify QSPI read_delay for Arria10

The default read delay for Arria10 QSPI module should be 3 on the
Arria10 devkit.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/boot/dts/socfpga_arria10_socdk_qspi.dts

@@ -19,7 +19,7 @@
 		m25p,fast-read;
 		cdns,page-size = <256>;
 		cdns,block-size = <16>;
-		cdns,read-delay = <4>;
+		cdns,read-delay = <3>;
 		cdns,tshsl-ns = <50>;
 		cdns,tsd2d-ns = <50>;
 		cdns,tchsh-ns = <4>;