ti-wifi-utils: add recipe

This recipe is for a TI WiFi calibrator utility [1]. The firmware from
this project is already shipped inside linux-firmware so we do not
package it in this recipe.

[1] http://linuxwireless.sipsolutions.net/en/users/Drivers/wl12xx/#Calibration



Signed-off-by: James Minor <james.minor@ni.com>
Signed-off-by: Ioan-Adrian Ratiu <adrian.ratiu@ni.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>