[media] c8sectpfe: Update binding to reset-gpios

reset-gpios is more clear than rst-gpio.

This change has been done as one atomic commit but it
does breaks compatability with older dtbs.

Signed-off-by: Peter Griffin <[e-mail]>
Acked-by: Lee Jones <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

Documentation/devicetree/bindings/media/stih407-c8sectpfe.txt

···
 
 - tsin-num	: tsin id of the InputBlock (must be between 0 to 6)
 - i2c-bus	: phandle to the I2C bus DT node which the demodulators & tuners on this tsin channel are connected.
-- rst-gpio	: reset gpio for this tsin channel.
+- reset-gpios	: reset gpio for this tsin channel.
 
 Optional properties (tsin (child) node):
 
···
 			tsin-num		= <0>;
 			serial-not-parallel;
 			i2c-bus			= <&ssc2>;
-			rst-gpio		= <&pio15 4 0>;
+			reset-gpios		= <&pio15 4 GPIO_ACTIVE_HIGH>;
 			dvb-card		= <STV0367_TDA18212_NIMA_1>;
 		};
 
···
 			tsin-num		= <3>;
 			serial-not-parallel;
 			i2c-bus			= <&ssc3>;
-			rst-gpio		= <&pio15 7 0>;
+			reset-gpios		= <&pio15 7 GPIO_ACTIVE_HIGH>;
 			dvb-card		= <STV0367_TDA18212_NIMB_1>;
 		};
 	};

arch/arm/boot/dts/stihxxx-b2120.dtsi

···
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-
 #include <dt-bindings/clock/stih407-clks.h>
+#include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/media/c8sectpfe.h>
 / {
 	soc {
···
 				tsin-num	= <0>;
 				serial-not-parallel;
 				i2c-bus		= <&ssc2>;
-				rst-gpio	= <&pio15 4 GPIO_ACTIVE_HIGH>;
+				reset-gpios	= <&pio15 4 GPIO_ACTIVE_HIGH>;
 				dvb-card	= <STV0367_TDA18212_NIMA_1>;
 			};
 		};

drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c

···
 		}
 		of_node_put(i2c_bus);
 
-		tsin->rst_gpio = of_get_named_gpio(child, "rst-gpio", 0);
+		tsin->rst_gpio = of_get_named_gpio(child, "reset-gpios", 0);
 
 		ret = gpio_is_valid(tsin->rst_gpio);
 		if (!ret) {