USB: cdc-acm: Fill in Renesas R-Car D3 USB Download mode quirk

Add Renesas R-Car D3 USB Download mode quirk and update comments
on all the other Renesas R-Car USB Download mode quirks to discern
them from each other. This follows R-Car Series, 3rd Generation
reference manual Rev.2.00 chapter 19.2.8 USB download mode .

Fixes: 6d853c9e4104 ("usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode")
Cc: stable <[e-mail]>
Signed-off-by: Marek Vasut <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/usb/class/cdc-acm.c

···
 	{ USB_DEVICE(0x0870, 0x0001), /* Metricom GS Modem */
 	.driver_info = NO_UNION_NORMAL, /* has no union descriptor */
 	},
-	{ USB_DEVICE(0x045b, 0x023c),	/* Renesas USB Download mode */
+	{ USB_DEVICE(0x045b, 0x023c),	/* Renesas R-Car H3 USB Download mode */
 	.driver_info = DISABLE_ECHO,	/* Don't echo banner */
 	},
-	{ USB_DEVICE(0x045b, 0x0248),	/* Renesas USB Download mode */
+	{ USB_DEVICE(0x045b, 0x0247),	/* Renesas R-Car D3 USB Download mode */
 	.driver_info = DISABLE_ECHO,	/* Don't echo banner */
 	},
-	{ USB_DEVICE(0x045b, 0x024D),	/* Renesas USB Download mode */
+	{ USB_DEVICE(0x045b, 0x0248),	/* Renesas R-Car M3-N USB Download mode */
+	.driver_info = DISABLE_ECHO,	/* Don't echo banner */
+	},
+	{ USB_DEVICE(0x045b, 0x024D),	/* Renesas R-Car E3 USB Download mode */
 	.driver_info = DISABLE_ECHO,	/* Don't echo banner */
 	},
 	{ USB_DEVICE(0x0e8d, 0x0003), /* FIREFLY, MediaTek Inc; [e-mail] */