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/ssl/ct_log_list.cnf.dist

@@ -0,0 +1,9 @@
+# This file specifies the Certificate Transparency logs
+# that are to be trusted.
+
+# Google's list of logs can be found here:
+#       www.certificate-transparency.org/known-logs
+# A Python program to convert the log list to OpenSSL's format can be
+# found here:
+#       https://github.com/google/certificate-transparency/blob/master/python/utilities/log_list/print_log_list.py
+# Use the "--openssl_output" flag.