ARM: at91: dt: at91sam9260: split rts and cts pinctrl not

as we just use the rts and not the rts & cts for rs485

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index 56ce896..dc9a4ee 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -139,10 +139,14 @@
 							 1 18 0x1 0x0>;	/* PB18 periph A */
 					};
 
-					pinctrl_usart0_rts_cts: usart0_rts_cts-0 {
+					pinctrl_usart0_rts: usart0_rts-0 {
 						atmel,pins =
-							<1 17 0x2 0x0	/* PB17 periph B */
-							 1 15 0x2 0x0>;	/* PB15 periph B */
+							<1 17 0x2 0x0>;	/* PB17 periph B */
+					};
+
+					pinctrl_usart0_cts: usart0_cts-0 {
+						atmel,pins =
+							<1 15 0x2 0x0>;	/* PB15 periph B */
 					};
 				};
 
@@ -153,10 +157,14 @@
 							 1 5 0x1 0x0>;	/* PB5 periph A */
 					};
 
-					pinctrl_usart1_rts_cts: usart1_rts_cts-0 {
+					pinctrl_usart1_rts: usart1_rts-0 {
 						atmel,pins =
-							<3 16 0x1 0x0	/* PD16 periph A */
-							 3 17 0x1 0x0>;	/* PD17 periph A */
+							<3 16 0x1 0x0>;	/* PD16 periph A */
+					};
+
+					pinctrl_usart1_cts: usart1_cts-0 {
+						atmel,pins =
+							<3 17 0x1 0x0>;	/* PD17 periph A */
 					};
 				};
 
@@ -167,10 +175,14 @@
 							 1 7 0x1 0x0>;	/* PB7 periph A */
 					};
 
-					pinctrl_usart2_rts_cts: usart2_rts_cts-0 {
+					pinctrl_usart2_rts: usart2_rts-0 {
 						atmel,pins =
-							<2 9 0x2 0x0	/* PC9 periph B */
-							 2 11 0x2 0x0>;	/* PC11 periph B */
+							<2 9 0x2 0x0>;	/* PC9 periph B */
+					};
+
+					pinctrl_usart2_cts: usart2_cts-0 {
+						atmel,pins =
+							<2 11 0x2 0x0>;	/* PC11 periph B */
 					};
 				};
 
@@ -181,10 +193,14 @@
 							 1 9 0x1 0x0>;	/* PB8 periph A */
 					};
 
-					pinctrl_usart3_rts_cts: usart3_rts_cts-0 {
+					pinctrl_usart3_rts: usart3_rts-0 {
 						atmel,pins =
-							<0 23 0x2 0x0	/* PA23 periph B */
-							 0 24 0x2 0x0>;	/* PA24 periph B */
+							<0 23 0x2 0x0>;	/* PA23 periph B */
+					};
+
+					pinctrl_usart3_cts: usart3_cts-0 {
+						atmel,pins =
+							<0 24 0x2 0x0>;	/* PA24 periph B */
 					};
 				};