x86: coreboot: Enable support for the configuration editor

Enable cedit support along with required options and a simple style.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/dts/coreboot.dts b/arch/x86/dts/coreboot.dts
index b867468..39d1d32 100644
--- a/arch/x86/dts/coreboot.dts
+++ b/arch/x86/dts/coreboot.dts
@@ -54,6 +54,13 @@
 			menu-inset = <3>;
 			menuitem-gap-y = <1>;
 		};
+
+		cedit-theme {
+			font-size = <30>;
+			menu-inset = <3>;
+			menuitem-gap-y = <1>;
+			menu-title-margin-x = <30>;
+		};
 	};
 
 	sysinfo {
diff --git a/configs/coreboot64_defconfig b/configs/coreboot64_defconfig
index 553f1dc..706c0cd 100644
--- a/configs/coreboot64_defconfig
+++ b/configs/coreboot64_defconfig
@@ -17,6 +17,7 @@
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="root=/dev/sdb3 init=/sbin/init rootwait ro"
 CONFIG_BOOTCOMMAND="bootflow scan -l; if bootflow menu; then cls; bootflow boot; fi"
+CONFIG_CEDIT=y
 CONFIG_SYS_PBSIZE=532
 CONFIG_PRE_CONSOLE_BUFFER=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
@@ -46,6 +47,7 @@
 CONFIG_USE_ROOTPATH=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y
+CONFIG_OFNODE_MULTI_TREE=y
 # CONFIG_ACPIGEN is not set
 CONFIG_SYS_IDE_MAXDEVICE=4
 CONFIG_SYS_ATA_DATA_OFFSET=0
diff --git a/configs/coreboot_defconfig b/configs/coreboot_defconfig
index 881bf8d..bd190e4 100644
--- a/configs/coreboot_defconfig
+++ b/configs/coreboot_defconfig
@@ -16,6 +16,7 @@
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="root=/dev/sdb3 init=/sbin/init rootwait ro"
 CONFIG_BOOTCOMMAND="bootflow scan -l; if bootflow menu; then cls; bootflow boot; fi"
+CONFIG_CEDIT=y
 CONFIG_PRE_CONSOLE_BUFFER=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 CONFIG_LOG=y
@@ -42,6 +43,7 @@
 CONFIG_USE_ROOTPATH=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y
+CONFIG_OFNODE_MULTI_TREE=y
 # CONFIG_ACPIGEN is not set
 CONFIG_SYS_IDE_MAXDEVICE=4
 CONFIG_SYS_ATA_DATA_OFFSET=0