power: supply: pm2301_charger: fix spelling mistake "chargind" -> "charging"

There is a spelling mistake in a dev_dbg message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/pm2301_charger.c

@@ -396,7 +396,7 @@ static int pm2_int_reg3(void *pm2_data, int val)
 
 	if (val & (PM2XXX_INT4_ITCHARGINGON)) {
 		dev_dbg(pm2->dev ,
-			"chargind operation has started\n");
+			"charging operation has started\n");
 	}
 
 	if (val & (PM2XXX_INT4_ITVRESUME)) {