agetty: tty eol defaults to REPRINT

agetty: tty eol defaults to REPRINT

Adapting tty eol settings from defaults misbehaves as CTRL('r') aka
REPRINT is confused with CR. Consequently --skip-login does not set
tty CR<->NL translations and thus acts against advertised CR as eol
default.

[kzak@redhat.com:
   It seems this issue has been introduced by commit f566447 where we
   merged sulogin and agetty terminal initialization together to the file
   include/ttyutils.h.

  The original agetty has really used .eol=13 (aka CR) for the default.
  The problem is invisible for sulogin(1) because it always asks for a
  password and .eol= is set to NL/CR, the same agetty when it asks for
  username.]

Addresses: https://github.com/karelzak/util-linux/pull/1247
Signed-off-by: Karel Zak <kzak@redhat.com>