rtl8192su: add eeproms

This patch provides real-life images of my two r92su devices:

rtl8191su.eeprom: RTL8191SU with a 1x2 radio
rtl8188su.eeprom: RTL8188SU with a 1x1 radio

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
r92su: add cfg80211 driver for Realtek RTL8188SU, RTL8191SU and RTL8192SU

This commit adds a new driver for the Realtek RTL8188SU, RTL8191SU and
RTL8192SU products.

It supports:
 - passive monitor and station mode
 - (firmware/hardware) encryption and decryption of 802.11 data frames
     legacy: WEP40, WEP104
     wpa, wpa2 (EAP and PSK): TKIP and CCMP
 - 802.11b/g/n (yes, HT is working!)
 - wps push button events

What still needs to be done:
 - support hardware with 6 and 11 endpoints
 - big endian architectures
 - FPGA and A-Cut hardware init
 - proper rx/tx statistics
 - checkpatch fixes
 - misc stuff (efuse/eeprom programming, APs with hidden ssids)
 - better access to the LEDs
 - integration into the kernel
 - ...

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>