ARM: imx35: fix trivial copy/paste error

Change imx31_add_imx_keypad() to imx35_add_imx_keypad() in
mach-mx3/devices-imx35.h.

Signed-off-by: Ryan Lortie <desrt@desrt.ca>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx3/devices-imx35.h

@@ -35,7 +35,7 @@ extern const struct imx_imx_i2c_data imx35_imx_i2c_data[] __initconst;
 #define imx35_add_imx_i2c2(pdata)	imx35_add_imx_i2c(2, pdata)
 
 extern const struct imx_imx_keypad_data imx35_imx_keypad_data __initconst;
-#define imx31_add_imx_keypad(pdata)	\
+#define imx35_add_imx_keypad(pdata)	\
 	imx_add_imx_keypad(&imx35_imx_keypad_data, pdata)
 
 extern const struct imx_imx_ssi_data imx35_imx_ssi_data[] __initconst;