libnvdimm, btt: sparse fix
libnvdimm, btt: sparse fix

Fix:
drivers/nvdimm/btt.c:635:29: warning: restricted __le64 degrades to integer

Signed-off-by: Dan Williams <24ee2bf0bd8ac766c348bf1f0639943bac1535c6@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs