[PATCH] add missing pm_power_off's

Add the missing pm_power_off's for the h8300, v850 and xtensa
architectures.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/v850/kernel/process.c b/arch/v850/kernel/process.c
index eb90993..621111d 100644
--- a/arch/v850/kernel/process.c
+++ b/arch/v850/kernel/process.c
@@ -30,6 +30,9 @@
 #include <asm/system.h>
 #include <asm/pgtable.h>
 
+void (*pm_power_off)(void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
+
 extern void ret_from_fork (void);