powerpc/pseries: Export rtas_ibm_suspend_me()

Export the rtas_ibm_suspend_me() routine.  This is needed to perform
partition migration in the kernel.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 41048de..dc67ea4 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -805,7 +805,7 @@
 	__rtas_suspend_cpu((struct rtas_suspend_me_data *)info, 1);
 }
 
-static int rtas_ibm_suspend_me(struct rtas_args *args)
+int rtas_ibm_suspend_me(struct rtas_args *args)
 {
 	long state;
 	long rc;
@@ -855,7 +855,7 @@
 	return atomic_read(&data.error);
 }
 #else /* CONFIG_PPC_PSERIES */
-static int rtas_ibm_suspend_me(struct rtas_args *args)
+int rtas_ibm_suspend_me(struct rtas_args *args)
 {
 	return -ENOSYS;
 }