Fix bug with page size rounding in munmap
Fix bug with page size rounding in munmap

KMU-embedded/mosbench-ext,KMU-embedded/mosbench-ext,KMU-embedded/mosbench-ext,KMU-embedded/mosbench-ext,KMU-embedded/mosbench-ext,KMU-embedded/mosbench-ext,KMU-embedded/mosbench-ext