pinctrl: exynos: Remove eint_gpio_init call-back for exynos7 alive pinctrl block

The alive pin controller on exynos7 does not support external gpio
interrupts. Hence, remove the eint_gpio_init call-back for it. This
fixes the following error message seen during exynos7 boot-up:
"samsung-pinctrl 10580000.pinctrl: irq number not available"
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Acked-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/samsung/pinctrl-exynos.c

@@ -1477,7 +1477,6 @@ const struct samsung_pin_ctrl exynos7_pin_ctrl[] __initconst = {
 		/* pin-controller instance 0 Alive data */
 		.pin_banks	= exynos7_pin_banks0,
 		.nr_banks	= ARRAY_SIZE(exynos7_pin_banks0),
-		.eint_gpio_init = exynos_eint_gpio_init,
 		.eint_wkup_init = exynos_eint_wkup_init,
 	}, {
 		/* pin-controller instance 1 BUS0 data */