Merge "libtimeinstate: fix potential optimized variable" into main

static constexpr uint64_t NSEC_PER_YEAR = NSEC_PER_SEC * 60 * 60 * 24 * 365;

// Declare busy loop variable globally to prevent removal during optimization

static long sum __attribute__((used)) = 0;

static volatile long sum __attribute__((used)) = 1;

using std::vector;

// Keeps CPU busy with some number crunching

void useCpu() {

    sum = 0;

    for (int i = 0; i < 100000; i++) {

    sum = 1;

    for (int i = 1; i < 100000; i++) {

        sum *= i;

    }

}