Input: gpio-tilt - convert documentation into ReST format

This file require minimum adjustments to be a valid ReST file.
Do it, in order to be able to parse it with Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/input/gpio-tilt.txt

@@ -28,22 +28,22 @@ Example:
 --------
 
 Example configuration for a single TS1003 tilt switch that rotates around
-one axis in 4 steps and emits the current tilt via two GPIOs.
+one axis in 4 steps and emits the current tilt via two GPIOs::
 
-static int sg060_tilt_enable(struct device *dev) {
+    static int sg060_tilt_enable(struct device *dev) {
 	    /* code to enable the sensors */
-};
+    };
 
-static void sg060_tilt_disable(struct device *dev) {
+    static void sg060_tilt_disable(struct device *dev) {
 	    /* code to disable the sensors */
-};
+    };
 
-static struct gpio sg060_tilt_gpios[] = {
+    static struct gpio sg060_tilt_gpios[] = {
 	    { SG060_TILT_GPIO_SENSOR1, GPIOF_IN, "tilt_sensor1" },
 	    { SG060_TILT_GPIO_SENSOR2, GPIOF_IN, "tilt_sensor2" },
-};
+    };
 
-static struct gpio_tilt_state sg060_tilt_states[] = {
+    static struct gpio_tilt_state sg060_tilt_states[] = {
 	    {
 		    .gpios = (0 << 1) | (0 << 0),
 		    .axes = (int[]) {
@@ -65,9 +65,9 @@ static struct gpio_tilt_state sg060_tilt_states[] = {
 			    3, /* 270 degrees */
 		    },
 	    },
-};
+    };
 
-static struct gpio_tilt_axis sg060_tilt_axes[] = {
+    static struct gpio_tilt_axis sg060_tilt_axes[] = {
 	    {
 		    .axis = ABS_RY,
 		    .min = 0,
@@ -75,9 +75,9 @@ static struct gpio_tilt_axis sg060_tilt_axes[] = {
 		    .fuzz = 0,
 		    .flat = 0,
 	    },
-};
+    };
 
-static struct gpio_tilt_platform_data sg060_tilt_pdata= {
+    static struct gpio_tilt_platform_data sg060_tilt_pdata= {
 	    .gpios = sg060_tilt_gpios,
 	    .nr_gpios = ARRAY_SIZE(sg060_tilt_gpios),
 
@@ -92,12 +92,12 @@ static struct gpio_tilt_platform_data sg060_tilt_pdata= {
 	    .poll_interval = 1000,
 	    .enable = sg060_tilt_enable,
 	    .disable = sg060_tilt_disable,
-};
+    };
 
-static struct platform_device sg060_device_tilt = {
+    static struct platform_device sg060_device_tilt = {
 	    .name = "gpio-tilt-polled",
 	    .id = -1,
 	    .dev = {
 		    .platform_data = &sg060_tilt_pdata,
 	    },
-};
+    };