ARM: Fix Kconfig symbols typo for LEDS

Correct option should be LEDS_TRIGGERS, not LEDS_TRIGGER.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/arch/arm/plat-versatile/Kconfig b/arch/arm/plat-versatile/Kconfig
index 2a4ae8a..eb50231 100644
--- a/arch/arm/plat-versatile/Kconfig
+++ b/arch/arm/plat-versatile/Kconfig
@@ -19,7 +19,7 @@
 	def_bool y if NEW_LEDS
 	depends on ARCH_REALVIEW || ARCH_VERSATILE
 	select LEDS_CLASS
-	select LEDS_TRIGGER
+	select LEDS_TRIGGERS
 
 config PLAT_VERSATILE_SCHED_CLOCK
 	def_bool y