wimax: update WiMAX firmwares for 2.6.35

This adds version 1.5 of the firmware for i2400m based devices (Intel
Wireless WiMAX Connection 5x50) and adds support for the 6x50
series.

The 1.3 version is purged as it is was never supported by a released kernel.
Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

WHENCE

@@ -595,8 +595,9 @@ Found in hex form in kernel source, with the following notice:
 
 Driver: i2400m-usb - Intel 2400 Wireless WiMAX Connection over USB
 
-File: i2400m-fw-usb-1.3.sbcf
 File: i2400m-fw-usb-1.4.sbcf
+File: i2400m-fw-usb-1.5.sbcf
+File: i6050-fw-usb-1.5.sbcf
 
 Licence: Redistributable. See LICENCE.i2400m for details