Clean up RHEL 8.2 docker files

docker/Dockerfile.phySim.rhel8.2

@@ -69,7 +69,6 @@ COPY --from=phy-sim-build \
     /oai-ran/targets/bin/smallblocktest.Rel15 \
     ./
 
-WORKDIR /usr/local/lib/
 COPY --from=phy-sim-build \
     /oai-ran/targets/bin/libcoding.so \
     /lib64/liblapacke.so.3 \
@@ -86,7 +85,7 @@ COPY --from=phy-sim-build \
     /oai-ran/cmake_targets/phy_simulators/build/libSIMU.so \
     /oai-ran/cmake_targets/phy_simulators/build/libldpc.so \
     /oai-ran/cmake_targets/phy_simulators/build/libldpc_orig.so \
-    ./
+    /usr/local/lib/
 
 RUN ldconfig