staging: r8712u: Firmware changes for driver

* select FW_LOADER in Kconfig - From: Stefan Lippers-Hollmann <s.l-h@gmx.de>
* declare MODULE_FIRMWARE for r8712u and change to correct directory
* delete 10K line farray.h containing internal firmware

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>