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/at91sam9263.dtsi b/arch/arm/boot/dts/at91sam9263.dtsi
index cf4b59f..a14aa3d 100644
--- a/arch/arm/boot/dts/at91sam9263.dtsi
+++ b/arch/arm/boot/dts/at91sam9263.dtsi
@@ -120,10 +120,14 @@
 							 0 27 0x1 0x0>;	/* PA27 periph A */
 					};
 
-					pinctrl_usart0_rts_cts: usart0_rts_cts-0 {
+					pinctrl_usart0_rts: usart0_rts-0 {
 						atmel,pins =
-							<0 28 0x1 0x0	/* PA28 periph A */
-							 0 29 0x1 0x0>;	/* PA29 periph A */
+							<0 28 0x1 0x0>;	/* PA28 periph A */
+					};
+
+					pinctrl_usart0_cts: usart0_cts-0 {
+						atmel,pins =
+							<0 29 0x1 0x0>;	/* PA29 periph A */
 					};
 				};
 
@@ -134,10 +138,14 @@
 							 3 1 0x1 0x0>;	/* PD1 periph A */
 					};
 
-					pinctrl_usart1_rts_cts: usart1_rts_cts-0 {
+					pinctrl_usart1_rts: usart1_rts-0 {
 						atmel,pins =
-							<3 7 0x2 0x0	/* PD7 periph B */
-							 3 8 0x2 0x0>;	/* PD8 periph B */
+							<3 7 0x2 0x0>;	/* PD7 periph B */
+					};
+
+					pinctrl_usart1_cts: usart1_cts-0 {
+						atmel,pins =
+							<3 8 0x2 0x0>;	/* PD8 periph B */
 					};
 				};
 
@@ -148,10 +156,14 @@
 							 3 3 0x1 0x0>;	/* PD3 periph A */
 					};
 
-					pinctrl_usart2_rts_cts: usart2_rts_cts-0 {
+					pinctrl_usart2_rts: usart2_rts-0 {
 						atmel,pins =
-							<3 5 0x2 0x0	/* PD5 periph B */
-							 4 6 0x2 0x0>;	/* PD6 periph B */
+							<3 5 0x2 0x0>;	/* PD5 periph B */
+					};
+
+					pinctrl_usart2_cts: usart2_cts-0 {
+						atmel,pins =
+							<4 6 0x2 0x0>;	/* PD6 periph B */
 					};
 				};