BugLink: https://bugs.launchpad.net/bugs/1864773

[ Upstream commit 63a0666b ]

Fix lack of keyboard interrupts for RiscPC due to incorrect conversion.

Fixes: e8d36d5d ("ARM: kill off set_irq_flags usage")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>