realtek: eth: Fix missing end of comment marker

Because this comment is followed by another comment, nothing luckily
breaks, so only a cosmetic change.

Signed-off-by: Olliver Schinagl <[email protected]>

target/linux/realtek/files-5.15/drivers/net/ethernet/rtl838x_eth.c

@@ -862,7 +862,7 @@ static void rtl839x_setup_notify_ring_buffer(struct rtl838x_eth_priv *priv)
 
 	/* Setup notification events */
 	sw_w32_mask(0, 1 << 14, RTL839X_L2_CTRL_0); /* RTL8390_L2_CTRL_0_FLUSH_NOTIFY_EN */
-	sw_w32_mask(0, 1 << 12, RTL839X_L2_NOTIFICATION_CTRL); /* SUSPEND_NOTIFICATION_EN
+	sw_w32_mask(0, 1 << 12, RTL839X_L2_NOTIFICATION_CTRL); /* SUSPEND_NOTIFICATION_EN */
 
 	/* Enable Notification */
 	sw_w32_mask(0, 1 << 0, RTL839X_L2_NOTIFICATION_CTRL);