On AArch64, 1G hugepages need to be enabled via kernel cmdline
before mounting hugetlbfs [1].
Leverage MaaS tags to apply custom kernel args to AArch64 nodes.
[1] https://wiki.debian.org/Hugepages
Change-Id: Ie68ddf805836ee62f725019b0b873082b1d40948 Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>