powerpc: Change u64/s64 to a long long integer type

Convert arch/powerpc/ over to long long based u64:

 -#ifdef __powerpc64__
 -# include <asm-generic/int-l64.h>
 -#else
 -# include <asm-generic/int-ll64.h>
 -#endif
 +#include <asm-generic/int-ll64.h>

This will avoid reoccuring spurious warnings in core kernel code that
comes when people test on their own hardware. (i.e. x86 in ~98% of the
cases) This is what x86 uses and it generally helps keep 64-bit code
32-bit clean too.

[Adjusted to not impact user mode (from paulus) - sfr]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/cell/beat_interrupt.c b/arch/powerpc/platforms/cell/beat_interrupt.c
index 192a935..7225484 100644
--- a/arch/powerpc/platforms/cell/beat_interrupt.c
+++ b/arch/powerpc/platforms/cell/beat_interrupt.c
@@ -99,7 +99,7 @@
 	err = beat_downcount_of_interrupt(irq_plug);
 	if (err != 0) {
 		if ((err & 0xFFFFFFFF) != 0xFFFFFFF5) /* -11: wrong state */
-			panic("Failed to downcount IRQ! Error = %16lx", err);
+			panic("Failed to downcount IRQ! Error = %16llx", err);
 
 		printk(KERN_ERR "IRQ over-downcounted, plug %d\n", irq_plug);
 	}