trace: fix printk warning for u64

A powerpc ppc64_defconfig build produces these warnings:

kernel/trace/ring_buffer.c: In function 'rb_add_time_stamp':
kernel/trace/ring_buffer.c:969: warning: format '%llu' expects type 'long long unsigned int', but argument 2 has type 'u64'
kernel/trace/ring_buffer.c:969: warning: format '%llu' expects type 'long long unsigned int', but argument 3 has type 'u64'
kernel/trace/ring_buffer.c:969: warning: format '%llu' expects type 'long long unsigned int', but argument 4 has type 'u64'

Just cast the u64s to unsigned long long like we do everywhere else.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

kernel/trace/ring_buffer.c

@@ -966,7 +966,9 @@ rb_add_time_stamp(struct ring_buffer_per_cpu *cpu_buffer,
 	if (unlikely(*delta > (1ULL << 59) && !once++)) {
 		printk(KERN_WARNING "Delta way too big! %llu"
 		       " ts=%llu write stamp = %llu\n",
-		       *delta, *ts, cpu_buffer->write_stamp);
+		       (unsigned long long)*delta,
+		       (unsigned long long)*ts,
+		       (unsigned long long)cpu_buffer->write_stamp);
 		WARN_ON(1);
 	}