guile: fixed installed-vs-shipped error

guile: fixed installed-vs-shipped error

Fixed:
guile-2.0.11: guile: Files/directories were installed but not shipped
  /usr/lib64/libguile-2.0*-gdb.scm [installed-vs-shipped]

This is because when there is no file in the directory:
for f in libguile-2.0*; do
    [snip]
done

The f would be libguile-2.0* itself, make sure the libs are installed
firstly will fix the problem.

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>