Merge remote-tracking branch 'origin/iris_hw_new' into develop_integration_2018_w51

cmake_targets/CMakeLists.txt

cmake_targets/build_oai

cmake_targets/tools/build_helper

targets/ARCH/COMMON/common_lib.c

targets/ARCH/COMMON/common_lib.h

targets/ARCH/IRIS/USERSPACE/LIB/Makefile.inc

targets/ARCH/IRIS/USERSPACE/LIB/iris_lib.cpp

...TS/GENERIC-LTE-EPC/CONF/enb.band38.tm1.25PRB.iris030.conf

...TS/GENERIC-LTE-EPC/CONF/enb.band42.tm1.25PRB.iris030.conf

...CTS/GENERIC-LTE-EPC/CONF/enb.band7.tm1.25PRB.iris030.conf

targets/RT/USER/lte-ru.c