Add PS5 WiFi firmware initramfs loader support

Add a CPIO wrapper to add new files/folders at initrd at runtime
Add early boot scripts (initramfs-tools for debian-based) support

source/loader.c

@@ -1,5 +1,6 @@
 #include "loader.h"
 #include "config.h"
+#include "firmware.h"
 #include "utils.h"
 #include <errno.h>
 #include <fcntl.h>
@@ -227,6 +228,9 @@ int fetch_linux(struct linux_info *info) {
     return -1;
   }
 
+  if (resolve_device_firmwares(&initrd, &initrd_size) < 0)
+    return -1;
+
   size_t vram_size;
   char buf_vram[16] = {};
   int ret = find_and_read_file("vram.txt", buf_vram, sizeof(buf_vram) - 1);