arm64: dts: agilex: add status to qspi dts node

Add status = "okay" to QSPI node.

Fixes: c4c8757b ("arm64: dts: agilex: add QSPI support for Intel Agilex")
Cc: linux-stable <stable@vger.kernel.org> # >= v5.5
Signed-off-by: NDinh Nguyen <dinguyen@kernel.org>

arch/arm64/boot/dts/intel/socfpga_agilex_socdk.dts

@@ -98,6 +98,7 @@
 };
 
 &qspi {
+	status = "okay";
 	flash@0 {
 		#address-cells = <1>;
 		#size-cells = <1>;