This "usb-glue" stands for an external controller associated with USB core,
however, this is not common. So rename to "usb-controller".
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/20220913042321.4817-4-hayashi.kunihiko@socionext.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>