pf_ring: fix mod operation not working on arm32
pf_ring: fix mod operation not working on arm32

On ARM 32bit, the mod operation does not work and causes
a linking error: "__aeabi_uldivmod undefined!"

Use the kernel div_u64_rem to fix it.

Signed-off-by: Daniel Sangorrin <84809c7d59853abca96fb53b392241446d850ae8@toshiba.co.jp>

ntop/PF_RING,ntop/PF_RING,ntop/PF_RING,ntop/PF_RING,ntop/PF_RING,ntop/PF_RING,ntop/PF_RING