libbinder: MemoryHeapPmem: honor the NO_CACHING flag when creating a client heap

    char const * const device = pmemHeap->getDevice();

#if HAVE_ANDROID_OS

    if (device) {

        int fd = open(device, O_RDWR);

        int fd = open(device, O_RDWR | (flags & NO_CACHING ? O_SYNC : 0));

        LOGE_IF(fd<0, "couldn't open %s (%s)", device, strerror(errno));

        if (fd >= 0) {

            int err = ioctl(fd, PMEM_CONNECT, pmemHeap->heapID());