ARM: dts: clps711x: Add an empty chosen node to top level DTSI

Missing "chosen" node can cause issues when booting a kernel
with a boot-loader that doesn't create a chosen node if this
isn't present in the DTB since the decompressor relies on a
pre-existing chosen node to be available to insert the command
line and merge other ATAGS info.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Link: https://lore.kernel.org/r/20210405051658.26779-5-shc_work@mail.ru'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/boot/dts/ep7209.dtsi

@@ -10,6 +10,8 @@ / {
 	model = "Cirrus Logic EP7209";
 	compatible = "cirrus,ep7209";
 
+	chosen { };
+
 	aliases {
 		gpio0 = &porta;
 		gpio1 = &portb;