cmd: usb_mass_storage: show device interface name

Show the interface name (i.e. 'mmc') in the information string to ease
user checking which device is exported via USB Mass Storage protocol.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
1 file changed