Adds support for the G PRO 2 LIGHTSPEED Wireless via it's nano receiver
or directly. This nano receiver appears to work identically to the 1_1
receiver for the case I've verified, which is the battery status through
lg-hidpp.
The same appears to be the case wired, sharing much with the Pro X
Superlight 2; differences seemed to lie in userland configuration rather
than in interfaces used by hid_logitech_hidpp on the kernel side.
I verified the sysfs interface for battery charge/discharge status, and
capacity read to be working on my 910-007290 device (white).