s390: switch to ->regset_get()

NB: compat NT_S390_LAST_BREAK might be better as compat_long_t
rather than long.  User-visible ABI, again...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-05-11 18:35:55 -04:00
commit b69c632052