The problem appears if multiple setup environment scripts are found. In
order to find only the script we're interested in, I removed globbing in
matching pattern with ${REAL_MULTIMACH_TARGET_SYS} that will be expanded
to the correct string.
Also, fix a problem when changing the scripts/configs. The grep pattern
matched also files that contained "text" in their name.
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>