ARM: at91: dts: sama5d3: change name of pinctrl_isi_{power,reset}

For sama5d3xmb board, the pins: pinctrl_isi_{power,reset} is used to
power-down or reset camera sensor.
So we should let camera sensor instead of ISI to configure the pins.

This patch will change pinctrl name from pinctrl_isi_{power,reset} to
pinctrl_sensor_{power,reset}. And remove these two pinctrl from ISI's
DT node. We will add these two pinctrl to sensor's DT node.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/boot/dts/sama5d3xmb.dtsi

@@ -61,7 +61,7 @@
 
 			isi: isi@f0034000 {
 				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_isi_data_0_7 &pinctrl_isi_pck_as_mck &pinctrl_isi_power &pinctrl_isi_reset>;
+				pinctrl-0 = <&pinctrl_isi_data_0_7 &pinctrl_isi_pck_as_mck>;
 			};
 
 			mmc1: mmc@f8000000 {
@@ -122,12 +122,12 @@
 							<AT91_PIOD 31 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PD31 periph B ISI_MCK */
 					};
 
-					pinctrl_isi_reset: isi_reset-0 {
+					pinctrl_sensor_reset: sensor_reset-0 {
 						atmel,pins =
 							<AT91_PIOE 24 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;   /* PE24 gpio */
 					};
 
-					pinctrl_isi_power: isi_power-0 {
+					pinctrl_sensor_power: sensor_power-0 {
 						atmel,pins =
 							<AT91_PIOE 29 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; /* PE29 gpio */
 					};