mpipe: fix build as shared library
mpipe: fix build as shared library

Without .map file, compiling error occurs when
CONFIG_RTE_BUILD_SHARED_LIB is enabled.

Reported-by: Guo Xin <0ebd76386162e55fc15494c2490137ef92bfa62c@ezchip.com>
Signed-off-by: Zhigang Lu <d473c8ac947e53ca706b2148c5db2c971399f855@ezchip.com>

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