Use referenced openofdm_rx submodule

No need to change branch anymore

Author: HavingaThijs

get_ip_openofdm_rx.sh

@@ -6,8 +6,8 @@ set -x
 cd ip/
 git submodule init openofdm_rx
 git submodule update openofdm_rx
-cd openofdm_rx
-git checkout dot11zynq
-git pull origin dot11zynq
+# cd openofdm_rx
+# git checkout dot11zynq
+# git pull origin dot11zynq
 
 cd $home_dir