powerpc/ps3: set_dabr() takes an unsigned long

Also silences this warning:

arch/powerpc/platforms/ps3/setup.c:275: warning: initialization from incompatible pointer type
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/platforms/ps3/setup.c

@@ -186,7 +186,7 @@ early_param("ps3flash", early_parse_ps3flash);
 #define prealloc_ps3flash_bounce_buffer()	do { } while (0)
 #endif
 
-static int ps3_set_dabr(u64 dabr)
+static int ps3_set_dabr(unsigned long dabr)
 {
 	enum {DABR_USER = 1, DABR_KERNEL = 2,};