[SPARC64]: Fix {mc,smt}_capable().

It's not just sun4v hypervisor platforms that should return true
for this, sun4u with UltraSPARC-IV should return true too.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h
index 5400212..4fb8c4b 100644
--- a/include/asm-sparc64/smp.h
+++ b/include/asm-sparc64/smp.h
@@ -34,6 +34,7 @@
 
 extern cpumask_t cpu_sibling_map[NR_CPUS];
 extern cpumask_t cpu_core_map[NR_CPUS];
+extern int sparc64_multi_core;
 
 /*
  *	General functions that each host system must provide.