openrisc: remove use of seq_printf return value

The seq_printf return value, because it's frequently misused,
will eventually be converted to void.

See: commit 1f33c41c ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/openrisc/kernel/setup.c

@@ -329,7 +329,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	version = (vr & SPR_VR_VER) >> 24;
 	revision = vr & SPR_VR_REV;
 
-	return seq_printf(m,
+	seq_printf(m,
 		   "cpu\t\t: OpenRISC-%x\n"
 		   "revision\t: %d\n"
 		   "frequency\t: %ld\n"
@@ -353,6 +353,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		   1 + (mfspr(SPR_IMMUCFGR) & SPR_IMMUCFGR_NTW),
 		   (loops_per_jiffy * HZ) / 500000,
 		   ((loops_per_jiffy * HZ) / 5000) % 100);
+
+	return 0;
 }
 
 static void *c_start(struct seq_file *m, loff_t * pos)