components/boot: Add common configuration for disk images

This introduces a core disk configuration profile "BootDiskCore"
that can be used for creating non-cloud bootable disks.

config.sh

@@ -46,7 +46,7 @@ fi
 #======================================
 # Delete & lock the root user password
 #--------------------------------------
-if [[ "$kiwi_profiles" == *"Cloud"* ]] || [[ "$kiwi_profiles" == *"Live"* ]]; then
+if [[ "$kiwi_profiles" == *"Cloud"* ]] || [[ "$kiwi_profiles" == *"Disk"* ]] || [[ "$kiwi_profiles" == *"Live"* ]]; then
 	passwd -d root
 	passwd -l root
 fi
@@ -92,6 +92,19 @@ if [[ "$kiwi_profiles" == *"Live"* ]]; then
 	fi
 fi
 
+#======================================
+# Setup firstboot initial setup
+#--------------------------------------
+
+if [[ "$kiwi_profiles" == *"Disk"* ]]; then
+	if [[ "$kiwi_profiles" != *"GNOME"* ]]; then
+		## Enable initial-setup
+		systemctl enable initial-setup.service
+		## Enable reconfig mode
+		touch /etc/reconfigSys
+	fi
+fi
+
 #======================================
 # Setup default target
 #--------------------------------------
@@ -107,6 +120,15 @@ fi
 # Setup default customizations
 #--------------------------------------
 
+if [[ "$kiwi_profiles" == *"Disk"* ]]; then
+	# Find the architecture we are on
+	installarch=$(uname -m)
+	# Setup Raspberry Pi firmware
+	if [[ $installarch == "aarch64" ]]; then
+		cp -a /usr/share/uboot/rpi_arm64/u-boot.bin /boot/efi/rpi-u-boot.bin
+	fi
+fi
+
 if [[ "$kiwi_profiles" == *"Azure"* ]]; then
 cat > /etc/ssh/sshd_config.d/50-client-alive-interval.conf << EOF
 ClientAliveInterval 120