Canonicalize size and ptable values on action creation.
Canonicalize size and ptable values on action creation.

curtin allows parition/lv sizes to be specified as strings or integers.
To avoid depending on whichever extract_storage_config gives us back,
canonicalize them to integers when creating an action. Similarly, curtin
accepts as synonyms "dos" and "msdos" for ptable; here we canonicalize
them both to "msdos".

CanonicalLtd/subiquity,CanonicalLtd/subiquity