core: add MemoryMin
    
    The kernel added support for a new cgroup memory controller knob memory.min in
    bf8d5d52ffe8 ("memcg: introduce memory.min") which was merged during v4.18
    merge window.
    
    Add MemoryMin to support memory.min.
    
    (cherry picked from commit 484226357789991de0b3363beb69258be06b4c92)
    
    Resolves: #1763435
    
    patch_name: 0403-core-add-MemoryMin.patch
    present_in_specfile: true
    location_in_specfile: 403
    squash_commits: true