[nrf fromlist] boards: arm: nrf9160_pca10090: increase reset line wait time

The 1ms wait time has been shown to not be enough. Increasing to 10ms.

This change has been shown to be necessary after
CONFIG_SYS_CLOCK_TICKS_PER_SEC was changed from 128 to 32768
in zephyrproject-rtos/zephyr#16782

Signed-off-by: Sigurd Olav Nevstad <[email protected]>

Author: sigurdnev

boards/arm/nrf9160_pca10090/nrf52840_reset.c

@@ -55,7 +55,7 @@ int bt_hci_transport_setup(struct device *h4)
 	 * It is critical (!) to wait here, so that all bytes
 	 * on the lines are received and drained correctly.
 	 */
-	k_sleep(K_MSEC(1));
+	k_sleep(K_MSEC(10));
 
 	/* Drain bytes */
 	while (uart_fifo_read(h4, &c, 1)) {