ARM: OMAP: Use right type for power_subsys

Use right type for power_subsys
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/pm.c

@@ -99,7 +99,6 @@ static struct subsys_attribute sleep_while_idle_attr = {
 	.store  = omap_pm_sleep_while_idle_store,
 };
 
-extern struct kset power_subsys;
 static void (*omap_sram_idle)(void) = NULL;
 static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL;
 

include/asm-arm/arch-omap/pm.h

@@ -115,7 +115,7 @@
 
 #include <linux/clk.h>
 
-extern struct subsystem power_subsys;
+extern struct kset power_subsys;
 
 extern void prevent_idle_sleep(void);
 extern void allow_idle_sleep(void);