issue: 4664028 Adding fair-sched to vg test

Valgrind is single threaded app and does not handle well spin locks.
Adding fair-sched=yes allows Sockperf main thread and VMA internal thread to operate without being blocked by Valgrind.

Signed-off-by: Alexander Grissik <[email protected]>

Author: AlexanderGrissik

contrib/jenkins_tests/vg.sh

@@ -68,7 +68,7 @@ for test_link in $test_ip_list; do
 		test_name=${test_in}-${test_n}
 
 		vg_args="-v \
-			--memcheck:leak-check=full --track-origins=yes --read-var-info=yes \
+			--memcheck:leak-check=full --track-origins=yes --fair-sched=yes --read-var-info=yes \
 			--errors-for-leak-kinds=definite --show-leak-kinds=definite,possible \
 			--undef-value-errors=yes --track-fds=yes --num-callers=32 \
 			--fullpath-after=${WORKSPACE} --gen-suppressions=all \