[sw/silicon_creator] Use CR+LF instead of LF in shutdown_print
[sw/silicon_creator] Use CR+LF instead of LF in shutdown_print

Signed-off-by: Alphan Ulusoy <23b245cc5a07aacf75a9db847b24c67dee1707bf@google.com>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan