Checkpatch issued a warning preferring to use kstrto<type> when
using a single variable sscanf.  Change the sscanf invocation to
a kstrtouint call.
Signed-off-by: NTom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>