Shorter interrupt locking of single SCK pulses

Workaround for cases where BLE radio stack is used on the same core and higher priority interrupts are corrupting clock signal to the ADC - https://devzone.nordicsemi.com/f/nordic-q-a/113092/gpio-bit-banging-and-ble-radio-activity

drivers/sensor/hx711/hx711.c

@@ -71,12 +71,18 @@ static void hx711_gpio_callback(const struct device *dev, struct gpio_callback *
  */
 static int hx711_cycle(struct hx711_data *data)
 {
+#ifdef CONFIG_HX711_DISABLE_INTERRUPTS_WHILE_POLLING
+	uint32_t key = irq_lock();
+#endif
 	/* SCK set HIGH */
 	gpio_pin_set(data->sck_gpio, hx711_config.sck_pin, true);
 	k_busy_wait(1);
 
 	/* SCK set LOW */
 	gpio_pin_set(data->sck_gpio, hx711_config.sck_pin, false);
+#ifdef CONFIG_HX711_DISABLE_INTERRUPTS_WHILE_POLLING
+	irq_unlock(key);
+#endif
 	k_busy_wait(1);
 
 	/* Return DOUT pin state */
@@ -115,10 +121,7 @@ static int hx711_sample_fetch(const struct device *dev, enum sensor_channel chan
 		goto exit;
 	}
 
-	/* Clock data out. Optionally disable interrupts */
-#ifdef CONFIG_HX711_DISABLE_INTERRUPTS_WHILE_POLLING
-	uint32_t key = irq_lock();
-#endif
+	/* Clock data out. */
 	for (i = 0; i < 24; i++) {
 		count = count << 1;
 		if (hx711_cycle(data)) {
@@ -131,10 +134,6 @@ static int hx711_sample_fetch(const struct device *dev, enum sensor_channel chan
 		hx711_cycle(data);
 	}
 
-#ifdef CONFIG_HX711_DISABLE_INTERRUPTS_WHILE_POLLING
-	irq_unlock(key);
-#endif
-
 	count ^= 0x800000;
 	data->reading = count;