Fix S3C2410 resume irq handling (was Fix s3c_irq_demux_extint8...)

[Andy Green]

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Somebody in the thread at some point said:
| On Wed, Dec 10, 2008 at 12:27:08AM +0530, Balaji Rao wrote:
|> Hi,
|>
|> It was observed that  even after the move to level irq on pcf50633, the
|> problem of 'the phone doesn't resume if POWER is pressed during
|> transition to standby' remains.
|>
|
| Hi,
|
| Here's a better attempt to solve the problem. This 'ack pending but
| masked interrupts' is now moved into irq resuming code - which is where
| it should really be. It wastes cpu time sitting in
| s3c_irq_demux_extint8.
|
| Ben, what do you think about this patch ?

I replaced yesterday's version in pending-tracking with this one.
Judging by what I saw on arm-linux list Ben is currently in the
lifesucking twilight Hellworld of suspend debugging (but maybe has seen
the light at the end of the tunnel).

- -Andy
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