Input: tc3589x-keypad - fix section mismatch warning

WARNING: drivers/input/keyboard/built-in.o(.text+0xb55b): Section mismatch in reference from the function tc3589x_keypad_open() to the function .devinit.text:tc3589x_keypad_init_key_hardware()
The function tc3589x_keypad_open() references
the function __devinit tc3589x_keypad_init_key_hardware().
This is often because tc3589x_keypad_open lacks a __devinit
annotation or the annotation of tc3589x_keypad_init_key_hardware is wrong.
Signed-off-by: Harvey Yang <harvey.huawei.yang@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

drivers/input/keyboard/tc3589x-keypad.c

@@ -90,7 +90,7 @@ struct tc_keypad {
 	bool keypad_stopped;
 };
 
-static int __devinit tc3589x_keypad_init_key_hardware(struct tc_keypad *keypad)
+static int tc3589x_keypad_init_key_hardware(struct tc_keypad *keypad)
 {
 	int ret;
 	struct tc3589x *tc3589x = keypad->tc3589x;