powerpc/cell: Bitops work on unsigned longs

So change the flags member of struct spu from u64 to unsigned long.
This change will also prevent some warnings when we change u64 to unsigned
long long.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/spu.h

@@ -128,7 +128,7 @@ struct spu {
 	int number;
 	unsigned int irqs[3];
 	u32 node;
-	u64 flags;
+	unsigned long flags;
 	u64 class_0_pending;
 	u64 class_0_dar;
 	u64 class_1_dar;