Switch from old to new MD5 API in tester3. #30

Job	Run time
build-native-gcc	5m 14s
build-native-llvm	5m 40s
test-native-gcc	7m 58s
build-aarch64-gcc	7m 3s
test-native-llvm	7m 20s
build-aarch64-llvm	6m 8s
build-armhf-gcc	5m 28s
build-armhf-llvm	2m 43s
build-ppc64el-gcc	2m 53s
build-ppc64el-llvm	3m 20s
build-s390x-gcc	5m 44s
build-s390x-llvm	2m 28s
build-riscv64-llvm	4m 24s
test-aarch64-gcc (qemu_cpu: "max,sve=off")	17m 5s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve128=on")	21m 21s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve256=on")	29m 25s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve512=on")	32m 56s
test-armhf-gcc (qemu_cpu: "max")	17m 29s
test-armhf-llvm (qemu_cpu: "max")	13m 18s
test-ppc64el-gcc (qemu_cpu: "power10")	26m 36s
test-ppc64el-llvm (qemu_cpu: "power10")	24m 18s
test-s390x-gcc (qemu_cpu: "")	21m 15s
test-s390x-llvm (qemu_cpu: "")	18m 6s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=false")	7m 14s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=128,elen=64,vext_spec=v1.0")	14m 26s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=256,elen=64,vext_spec=v1.0")	19m 59s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=512,elen=64,vext_spec=v1.0")	30m 47s
	6h 0m 38s

Provide feedback