BK clued me into the fact that for some types, similar alignment
problems exist as with the normal atomic package (e.g. 64-bit types on
32-bit architectures) if they are not pointer values. So change the few
places they weren't pointers to pointers.
None of these are 64-bit, but it feels like best practice for using the
library and should just standardize on it.
This was copied from Vault code but shouldn't be necessary any more as a
change in hclog a while back meant that derived loggers share the log
level of the parent.
Jeff Mitchell