refactor: is option initramfs on device needed, also does not select …

[jdreichmann]

…boot device

Selecting a wrong device since it's not matching on the boot device:

TASK [famedly.base.dropbear_luks_unlock : Configure `crypttab`] *******************************************************
--- before: /etc/crypttab (content)
+++ after: /etc/crypttab (content)
@@ -2,4 +2,4 @@
 luks_sda /dev/sda /root/key_sda.key luks,discard
 luks_sdb /dev/sdb /root/key_sdb.key luks,discard
 luks_sdc /dev/sdc /root/key_sdc.key luks,discard
-luks_sdd /dev/sdd /root/key_sdd.key luks,discard
+luks_sdd /dev/sdd /root/key_sdd.key luks,initramfs

https://manpages.debian.org/bookworm/cryptsetup/crypttab.5.en.html lists this as debian-specific, but this server boots fine from /dev/sde regardless of discard or initramfs flag - unclear wether this is needed

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