x86: emulation: Enable bootctl for testing

Provide bootctl with x86 QEMU builds.

Signed-off-by: Simon Glass <sjg@chromium.org>

arch/x86/dts/qemu-x86_i440fx.dts

@@ -42,6 +42,19 @@
 		};
 	};
 
+	boot_ctl: bootctl {
+	};
+
+	bootstd {
+		compatible = "u-boot,boot-std";
+		theme {
+			white-on-black;
+			font-size = <30>;
+			menu-inset = <3>;
+			menuitem-gap-y = <1>;
+		};
+	};
+
 	pci {
 		compatible = "pci-x86";
 		#address-cells = <3>;
@@ -73,3 +86,5 @@
 	};
 
 };
+
+#include "bootctl.dtsi"

arch/x86/dts/qemu-x86_q35.dts

@@ -53,6 +53,19 @@
 		};
 	};
 
+	boot_ctl: bootctl {
+	};
+
+	bootstd {
+		compatible = "u-boot,boot-std";
+		theme {
+			white-on-black;
+			font-size = <30>;
+			menu-inset = <3>;
+			menuitem-gap-y = <1>;
+		};
+	};
+
 	pci {
 		compatible = "pci-x86";
 		#address-cells = <3>;
@@ -92,3 +105,5 @@
 	};
 
 };
+
+#include "bootctl.dtsi"