fix: Switch to space-separated sources.conf format

- Change from colon to space separation to avoid URL parsing issues
- Update sources.conf format: TYPE NAME URL VERSION BUILD_FUNCTION [EXTRA]
- Implement awk-based parsing for reliable field extraction
- Fix firmware package list (remove unavailable linux-firmware-marvell)

initramfs/etc/securetty

@@ -0,0 +1,25 @@
+console
+tty0
+tty1
+tty2
+tty3
+tty4
+tty5
+tty6
+tty7
+tty8
+tty9
+tty10
+tty11
+hvc0
+ttyS0
+ttyS1
+ttyS2
+ttyGS0
+ttyAMA0
+ttyAMA1
+ttyTCU0
+ttyTHS0
+ttyTHS1
+ttymxc0
+ttymxc2