(split) Fix an off-by-one error when iterating over the emulated PCI BARs.

Submitted by:	Tycho Nightingale (tycho.nightingale@pluribusnetworks.com)
(split) Add support for the MediaTek/Ralink RT5370/RT5372 chipset.

Tested with the TP-Link TL-WN727N (RT5370) and the D-Link DWA-140 (RT5372)
on i386/amd64/arm with WPA.
(split) Remove r257748 by accident.
(split) Use the real product name for Edimax rsu(4) id.
(split) Merge branch 'CURRENT' (commit 'e41d2fd5')

Conflicts:
	sys/dev/usb/wlan/if_run.c