mach-ux500: platform data for SFH7741 proximity sensor driver

Proximity sensor is managed as an input event (SW_PROXIMITY).

Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org>
[Named GPIO pin]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index fe22b84..19b6c27 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -11,6 +11,7 @@
 
 /* GPIOs on the TC35892 expander */
 #define GPIO_SDMMC_CD			MOP500_EGPIO(3)
+#define GPIO_PROX_SENSOR		MOP500_EGPIO(7)
 #define GPIO_BU21013_CS			MOP500_EGPIO(13)
 #define GPIO_SDMMC_EN			MOP500_EGPIO(17)
 #define GPIO_SDMMC_1V8_3V_SEL		MOP500_EGPIO(18)