ARM: gic: Consolidate PPI handling with request_percpu_irq() API

The commit 292b293c creates the MSM boot failures, so squash
the commit 28af690a with it to avoid such failures. The commit ddd847
and 0c1991 are required to keep the watchdog and Copper targets working.

commit 292b293c
Author: Marc Zyngier <marc.zyngier@arm.com>
Date:   Wed Jul 20 16:24:14 2011 +0100

    ARM: gic: consolidate PPI handling

    PPI handling is a bit of an odd beast. It uses its own low level
    handling code and is hardwired to the local timers (hence lacking
    a registration interface).

    Instead, switch the low handling to the normal SPI handling code.
    PPIs are handled by the handle_percpu_devid_irq flow.

    This also allows the removal of some duplicated code.

    Cc: Kukjin Kim <kgene.kim@samsung.com>
    Cc: David Brown <davidb@codeaurora.org>
    Cc: Bryan Huntsman <bryanh@codeaurora.org>
    Cc: Tony Lindgren <tony@atomide.com>
    Cc: Paul Mundt <lethal@linux-sh.org>
    Cc: Magnus Damm <magnus.damm@gmail.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Acked-by: David Brown <davidb@codeaurora.org>
    Tested-by: David Brown <davidb@codeaurora.org>
    Tested-by: Shawn Guo <shawn.guo@linaro.org>
    Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

commit 28af690a
Author: Marc Zyngier <marc.zyngier@arm.com>
Date:   Fri Jul 22 12:52:37 2011 +0100

    ARM: gic, local timers: use the request_percpu_irq() interface

    This patch remove the hardcoded link between local timers and PPIs,
    and convert the PPI users (TWD, MCT and MSM timers) to the new
    *_percpu_irq interface. Also some collateral cleanup
    (local_timer_ack() is gone, and the interrupt handler is strictly
    private to each driver).

    PPIs are now useable for more than just the local timers.

    Additional testing by David Brown (msm8250 and msm8660) and
    Shawn Guo (imx6q).

    Cc: David Brown <davidb@codeaurora.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Acked-by: David Brown <davidb@codeaurora.org>
    Tested-by: David Brown <davidb@codeaurora.org>
    Tested-by: Shawn Guo <shawn.guo@linaro.org>
    Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

commit ddd8478d68f8cf75ee9771667c0cbe2a9d1caeb9
Author: Trilok Soni <tsoni@codeaurora.org>
Date:   Tue Dec 6 00:56:01 2011 +0530

    msm: watchdog: Use request_percpu_irq() interface

    Change-Id: I7c319344f6a7f7a7c70682ac87f5c385e56d130c
    Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
    Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>

commit 0c19915e092214a4c17a9920c4c1f3d78610217d
Author: Sathish Ambley <sambley@codeaurora.org>
Date:   Fri Dec 9 17:07:37 2011 +0530

    arm: arch_timer: Use request_percpu_irq() API

    Change-Id: Iee9b218d538f315cd884a47d95bcc0dcc49b0fe1
    Signed-off-by: Sathish Ambley <sambley@codeaurora.org>

Change-Id: I7bbba706b1f2e55814be5891ed76063725c2bfb1
Signed-off-by: Ravi Kumar <kumarrav@codeaurora.org>
[tsoni@codeaurora.org: MSM specific fixes]
Signed-off-by: Trilok Soni <tsoni@codeaurora.org>