ARM: dts: bcm2835: fix uart0/uart1 pins

According to the BCM2835 ARM Peripherals document uart1 doesn't map to pins
36-39, but uart0 does.

Also, split into separate Rx/Tx and CST/RTS groups to match other uart nodes.

Fixes: 21ff8439 ("ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.")
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Reviewed-by: NEric Anholt <eric@anholt.net>

arch/arm/boot/dts/bcm283x.dtsi

@@ -309,6 +309,14 @@
 				brcm,pins = <32 33>;
 				brcm,function = <BCM2835_FSEL_ALT3>;
 			};
+			uart0_gpio36: uart0_gpio36 {
+				brcm,pins = <36 37>;
+				brcm,function = <BCM2835_FSEL_ALT2>;
+			};
+			uart0_ctsrts_gpio38: uart0_ctsrts_gpio38 {
+				brcm,pins = <38 39>;
+				brcm,function = <BCM2835_FSEL_ALT2>;
+			};
 
 			uart1_gpio14: uart1_gpio14 {
 				brcm,pins = <14 15>;
@@ -326,10 +334,6 @@
 				brcm,pins = <30 31>;
 				brcm,function = <BCM2835_FSEL_ALT5>;
 			};
-			uart1_gpio36: uart1_gpio36 {
-				brcm,pins = <36 37 38 39>;
-				brcm,function = <BCM2835_FSEL_ALT2>;
-			};
 			uart1_gpio40: uart1_gpio40 {
 				brcm,pins = <40 41>;
 				brcm,function = <BCM2835_FSEL_ALT5>;