nr_pdcp: nia1 implementation

We reuse existing code from eia1 for actual computation. Maybe not the most
efficient. To be revised if needed.

Some hacks in CMakeLists.txt were introduced to compile
phy simulators. To be removed at some point.

cmake_targets/CMakeLists.txt

@@ -1804,7 +1804,15 @@ set(NR_PDCP_SRC
   ${OPENAIR2_DIR}/LAYER2/nr_pdcp/nr_pdcp_timer_thread.c
   ${OPENAIR2_DIR}/LAYER2/nr_pdcp/nr_pdcp_security_nea2.c
   ${OPENAIR2_DIR}/LAYER2/nr_pdcp/nr_pdcp_integrity_nia2.c
+  ${OPENAIR2_DIR}/LAYER2/nr_pdcp/nr_pdcp_integrity_nia1.c
   ${OPENAIR2_DIR}/LAYER2/nr_pdcp/asn1_utils.c
+  #hack: include these files to compile the nr phy simulators
+  #these files should not be here, will be removed at some point when the
+  #computation is done directly inside nr_pdcp_integrity_nia1.c instead
+  #of reusing code of osa_stream_eia.c
+  ${OPENAIR2_DIR}/UTIL/OSA/osa_stream_eia.c
+  ${OPENAIR2_DIR}/UTIL/OSA/osa_snow3g.c
+  ${OPENAIR2_DIR}/UTIL/OSA/osa_rijndael.c
   )
 
 set(NR_SDAP_SRC