Add iterations variable used for --reps

#!/bin/bash

SYSCALL="getpid"

BUILD=../build

BUILD="$(dirname $0)/../build"

ITERATIONS=100000000

REPEATS=20

ARCH="$(uname -m 2>/dev/null || echo -n unknown)"

NATIVE="$BUILD/opendevnull --syscall $SYSCALL"

INTERC="$BUILD/opendevnull --syscall $SYSCALL"

SC2SC="$BUILD/opendevnull --syscall $SYSCALL --always_syscall"

NATIVE="$BUILD/opendevnull --syscall $SYSCALL --reps $ITERATIONS"

INTERC="$BUILD/opendevnull --syscall $SYSCALL --reps $ITERATIONS"

SC2SC="$BUILD/opendevnull --syscall $SYSCALL --reps $ITERATIONS --always_syscall"

# Arrays to store output values