After commit ba1183da we are including
hw/Makefile.objs directly from Makefile.target. Make sure hw/Makefile.objs
rules doesn't depend on variable defined in Makefile.objs
Tested-by: NSerge Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>