Limit the scope of qual_fault.tests on aarch64 as otherwise it takes
unacceptable amount of time on available builders (more than an hour).
Index: strace-4.24/tests/qual_fault.test
===================================================================
--- strace-4.24.orig/tests/qual_fault.test	2019-06-13 17:37:10.708269613 +0200
+++ strace-4.24/tests/qual_fault.test	2019-06-13 17:41:29.358829506 +0200
@@ -75,18 +75,32 @@
 	done
 }
 
-for err in '' ENOSYS 22 einval; do
+
+case "$STRACE_ARCH" in
+	aarch64)
+	NUMBERS1='2'
+	NUMBERS2='3'
+	ERRS='EnoSys 22'
+	;;
+	*)
+	ERRS='ENOSYS 22 einval'
+	NUMBERS1='1 2 3 5 7 11'
+	NUMBERS2='1 2 3 5 7 11'
+	;;
+esac
+
+for err in '' $(echo $ERRS); do
 	for fault in writev desc,51; do
 		check_fault_injection \
 			writev $fault "$err" '' '' 1 -efault=chdir
 		check_fault_injection \
 			writev $fault "$err" '' '' 1 -efault=chdir -efault=none
-		for F in 1 2 3 5 7 11; do
+		for F in $(echo $NUMBERS1); do
 			check_fault_injection \
 				writev $fault "$err" $F '' 1
 			check_fault_injection \
 				writev $fault "$err" $F + 1
-			for S in 1 2 3 5 7 11; do
+			for S in $(echo $NUMBERS2); do
 				check_fault_injection \
 					writev $fault "$err" $F $S 1
 				check_fault_injection \