ASoC: rt5645: rename jd_invert flag in platform data

The jd_invert flag is actually used for level triggered IRQ. Rename
it to let code more readable.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/rt5645.h

@@ -21,8 +21,8 @@ struct rt5645_platform_data {
 	/* 0 = IN2P; 1 = GPIO6; 2 = GPIO10; 3 = GPIO12 */
 
 	unsigned int jd_mode;
-	/* Invert JD when jack insert */
-	bool jd_invert;
+	/* Use level triggered irq */
+	bool level_trigger_irq;
 };
 
 #endif