m68k: add support for TIF_NOTIFY_SIGNAL

stable inclusion
from stable-v5.10.162
commit fe137f46d41f90e1a36134e7876db897a25b7926
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7P7OH

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fe137f46d41f90e1a36134e7876db897a25b7926



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[ Upstream commit e660653c ]

Wire up TIF_NOTIFY_SIGNAL handling for m68k.

Cc: linux-m68k@lists.linux-m68k.org
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>