update shell script helper to support EM installation

scripts/install-obsw-yocto.sh

@@ -1,9 +1,16 @@
 #!/bin/bash
 # This is a helper script to install the compiles EIVE OBSW files
 # into the yocto repository to re-generate the mission root filesystem
+build_dir=cmake-build-release-q7s
+if [ !-z ${1} ]; then
+  if [ ${1} == "em" ]; then
+    echo "-I- Installing EM binaries"
+    build_dir=cmake-build-release-q7s-em
+  fi
+fi
 
 init_dir=$(pwd)
-build_dir=cmake-build-release-q7s
+
 obsw_root=""
 q7s_yocto_dir="q7s-yocto"
 q7s_package_path="q7s-package/${q7s_yocto_dir}"