nvdimm: change to use generic kvfree()
nvdimm: change to use generic kvfree()

Signed-off-by: yalin wang <ebc1c6cda3161aa0540a37028dccdfb5bf1575d6@gmail.com>
Reviewed-by: Ross Zwisler <19f56ffe3ac18f81d12a74c011e044bc6df12299@linux.intel.com>
Signed-off-by: Dan Williams <24ee2bf0bd8ac766c348bf1f0639943bac1535c6@intel.com>

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