irqchip: Kill off set_irq_flags usage

set_irq_flags is ARM specific with custom flags which have genirq
equivalents. Convert drivers to use the genirq interfaces directly, so we
can kill off set_irq_flags. The translation of flags is as follows:

IRQF_VALID -> !IRQ_NOREQUEST
IRQF_PROBE -> !IRQ_NOPROBE
IRQF_NOAUTOEN -> IRQ_NOAUTOEN

For IRQs managed by an irqdomain, the irqdomain core code handles clearing
and setting IRQ_NOREQUEST already, so there is no need to do this in
.map() functions and we can simply remove the set_irq_flags calls. Some
users also modify IRQ_NOPROBE and this has been maintained although it
is not clear that is really needed. There appears to be a great deal of
blind copy and paste of this code.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Lee Jones <lee@kernel.org>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Link: http://lkml.kernel.org/r/1440889285-5637-3-git-send-email-robh@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --cc drivers/irqchip/exynos-combiner.c
Simple merge

diff --cc drivers/irqchip/irq-armada-370-xp.c
Simple merge

diff --cc drivers/irqchip/irq-bcm2835.c
Simple merge

diff --cc drivers/irqchip/irq-clps711x.c
Simple merge

diff --cc drivers/irqchip/irq-gic-v3.c
Simple merge

diff --cc drivers/irqchip/irq-gic.c
Simple merge

diff --cc drivers/irqchip/irq-hip04.c
Simple merge

diff --cc drivers/irqchip/irq-keystone.c
Simple merge

diff --cc drivers/irqchip/irq-mmp.c
Simple merge

diff --cc drivers/irqchip/irq-mxs.c
Simple merge

diff --cc drivers/irqchip/irq-renesas-intc-irqpin.c
Simple merge

diff --cc drivers/irqchip/irq-s3c24xx.c
Simple merge

diff --cc drivers/irqchip/irq-sun4i.c
Simple merge

diff --cc drivers/irqchip/irq-versatile-fpga.c
Simple merge

diff --cc drivers/irqchip/irq-vic.c
Simple merge

diff --cc drivers/irqchip/irq-vt8500.c
Simple merge

diff --cc drivers/irqchip/spear-shirq.c
Simple merge