stress: add SUMMARY

(From OE-Core rev: bfe70134ae569a51b3decf2dd6ae3ae25dbb5994)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/stress/stress_1.0.4.bb

@@ -1,3 +1,4 @@
+SUMMARY = "System load testing utility"
 DESCRIPTION = "Deliberately simple workload generator for POSIX systems. It \
 imposes a configurable amount of CPU, memory, I/O, and disk stress on the system."
 HOMEPAGE = "http://people.seas.harvard.edu/~apw/stress/"