UPSTREAM: h8300: add support for TIF_NOTIFY_SIGNAL

[ Upstream commit 2f9799ad ]

Wire up TIF_NOTIFY_SIGNAL handling for h8300.

Cc: uclinux-h8-devel@lists.sourceforge.jp
Change-Id: Ibd30f09fc25229b5a410ec37485aac0a188ff717
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 48e9e35d)
Bug: 268174392
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>