cbt: Move libuuid linking

OpenXT, using OpenEmbedded Dundell, fails to link cbt-util with errors
like:
ld: ./.libs/libcbtutil.a(cbt-util.o): in function `cbt_util_set':
ld: cbt/cbt-util.c:360: undefined reference to `uuid_parse'

libcbtutil.a/cbt-util.c reference the uuid funtions, and main.c doesn't
have any references.  Move the linking to the library to resolve the
issue.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>

cbt/Makefile.am

@@ -9,9 +9,10 @@ sbin_PROGRAMS = cbt-util
 noinst_LTLIBRARIES = libcbtutil.la
 
 libcbtutil_la_SOURCES = cbt-util.c
+libcbtutil_la_LIBADD =  -luuid
 
 cbt_util_SOURCES  = main.c
-cbt_util_LDADD  = -lrt -luuid libcbtutil.la
+cbt_util_LDADD  = -lrt libcbtutil.la
 
 clean-local:
 	-rm -rf *.gc??