fwk: dogwood: EC should turn on the PSU power as soon as possible

In the commit 871089f, we should use
gpio_pin_set_dt instead of gpio_pin_get_dt if the 5V current alart is
asserted.

TEST=fwk-dogwood-27111
BUG=code reviewed and found that we used the wrong API
TEST=Measure the interval between 5V alert and ps_on.
     The interval with this change is 26us; Before this change is 1.5ms

Signed-off-by: Josh Tsai <Josh_Tsai@compal.com>

Author: Josh-Tsai

zephyr/program/framework/dogwood/src/power_monitor.c

@@ -205,7 +205,7 @@ void power_monitor_interrupt_idx_1(enum gpio_signal signal)
 
 	/* EC needs to turn on the psu power as soon as possible. */
 	if (has_alert && !psu_has_enabled)
-		gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(gpio_ps_on));
+		gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_ps_on), 1);
 
 	/**
 	 * If the power monitor asserts the alert pin to notice there is