can: esd_usb: Use consistent prefixes for macros

Add the consistent prefix ESD_USB_ to all macros defined within
esd_usb.c.
For macros specific to esd CAN-USB/2 use ESD_USB_2_ as prefix.
For macros specific to esd CAN-USB/Micro use ESD_USB_M_ as prefix.
Change the macro ESD_USB_3_SAMPLES to ESD_USB_TRIPLE_SAMPLES to not
mix up with the prefix ESD_USB_3_ which will be introduced for the
CAN-USB/3 device.

Link: https://lore.kernel.org/all/CAMZ6RqLaDNy-fZ2G0+QMhUEckkXLL+ZyELVSDFmqpd++aBzZQg@mail.gmail.com/
Suggested-by: Vincent MAILHOL <[email protected]>
Signed-off-by: Frank Jungclaus <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>

Author: Frank Jungclaus