x86, UV: add uv_setup_irq() and uv_teardown_irq() functions, v3,fix

[Ingo Molnar]

* Ingo Molnar <mingo@xxxxxxx> wrote:

> 
> * Dean Nelson <dcn@xxxxxxx> wrote:
> 
> > Provide a means for UV interrupt MMRs to be setup with the message to be sent
> > when an MSI is raised.
> > 
> > Signed-off-by: Dean Nelson <dcn@xxxxxxx>
> 
> v3 looks good - applied to tip/x86/uv, thanks Dean!

-tip testing found a build error - fixlet below.

	Ingo

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