boards: nordic: nrf7002dk: Fix the newline between the groups

Add a newline between child nodes.

Signed-off-by: Chaitanya Tata <Chaitanya.Tata@nordicsemi.no>

Author: krish2718

boards/nordic/nrf7002dk/nrf5340_cpuapp_common_pinctrl.dtsi

@@ -59,6 +59,7 @@
 				<NRF_PSEL(QSPI_IO3, 0, 16)>;
 			bias-pull-down;
 		};
+
 		group2 {
 			psels = <NRF_PSEL(QSPI_CSN, 0, 18)>;
 			bias-pull-up;
@@ -75,6 +76,7 @@
 			bias-pull-down;
 			low-power-enable;
 		};
+
 		group2 {
 			psels = <NRF_PSEL(QSPI_CSN, 0, 18)>;
 			bias-pull-up;