examples/ip_pipeline: convert dual-license to SDPX
examples/ip_pipeline: convert dual-license to SDPX

This updates the Intel and Oliver Matz licenses on a file in examples
to be the standard BSD-3-Clause license used for the rest of DPDK,
bringing the files in compliance with the DPDK licensing policy.

Signed-off-by: Lee Daly <2af6d60a469e2e51a74701465717d0f5d7aa31a1@intel.com>
Acked-by: Ferruh Yigit <ba8734c3c506d2e3557bd4ac8fdaccd25bdb9aa7@intel.com>
Acked-by: Olivier Matz <dfcc1510895413197abb4336e39bb0a3906cba71@6wind.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk