power: twl4030: Add imply CMD_POWEROFF when TWL4030 is enabled

Now that CMD_POWEROFF can turn off the twl4030, let's imply that
just incase someone wants to disable it.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index a7d56e6..d8c107e 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -311,6 +311,7 @@
 config TWL4030_POWER
 	depends on OMAP34XX
 	bool "Enable driver for TI TWL4030 power management chip"
+	imply CMD_POWEROFF
 	---help---
 	The TWL4030 in a combination audio CODEC/power management with
 	GPIO and it is commonly used with the OMAP3 family of processors