UPSTREAM: arm: add support for TIF_NOTIFY_SIGNAL

[ Upstream commit 32d59773 ]

Wire up TIF_NOTIFY_SIGNAL handling for arm.

Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Change-Id: Ic1385829b4c4b28cb4b1f82595fd0b2acb9ec9eb
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 1bee9dbb)
Bug: 268174392
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>