pinctrl: dt-bindings: Fix the armada-37xx documentation

While it was possible to configure the PCIe1 Wakeup pin, it was missing
in the bidding, let's document it.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Tested-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/marvell,armada-37xx-pinctrl.txt

@@ -127,12 +127,16 @@ group pcie1_clkreq
  - pins 40
  - functions pcie, gpio
 
+group pcie1_wakeup
+ - pins 41
+ - functions pcie, gpio
+
 group smi
  - pins 54-55
  - functions smi, gpio
 
 group ptp
- - pins 56-58
+ - pins 56
  - functions ptp, gpio
 
 group ptp_clk