serial: sifive: Fix sifive_serial_console_setup() section

stable inclusion
from stable-v5.10.190
commit 1037ee1dbf739a12b2861ea15197f3fb02fc975b
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I928UI

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1037ee1dbf739a12b2861ea15197f3fb02fc975b



--------------------------------

commit 9b8fef63 upstream.

This function is called indirectly from the platform driver probe
function. Even if the driver is built in, it may be probed after
free_initmem() due to deferral or unbinding/binding via sysfs.
Thus the function cannot be marked as __init.

Fixes: 45c054d0 ("tty: serial: add driver for the SiFive UART")
Cc: stable <stable@kernel.org>
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://lore.kernel.org/r/20230624060159.3401369-1-samuel.holland@sifive.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>