build_oai: make USRP build possible without hardware

cmake_targets/tools/build_helper

@@ -220,9 +220,16 @@ check_install_usrp_uhd_driver(){
         $SUDO add-apt-repository ppa:ettusresearch/uhd -y
         $SUDO apt-get update
         $SUDO apt-get -y install  python python-tk libboost-all-dev libusb-1.0-0-dev
-        $SUDO apt-get -y install libuhd-dev libuhd003 uhd-host
+        $SUDO apt-get -y install libuhd-dev libuhd003
+}
+
+install_usrp_uhd_driver() {
+        # We move uhd-host apart because it depends on linux kernel version
+        # On newer kernels, it fails to install
+        $SUDO apt-get -y install uhd-host
         $SUDO uhd_images_downloader 
 }
+
 check_install_bladerf_driver(){
 	$SUDO add-apt-repository -y ppa:bladerf/bladerf
 	$SUDO apt-get update