[docker-base]: swss/syncd support use zmq as rpc channel (#5715)

install libzmq5 in docker-base

Signed-off-by: Guohan Lu <lguohan@gmail.com>

dockers/docker-base-buster/Dockerfile.j2

@@ -71,7 +71,9 @@ RUN apt-get update &&        \
         python-setuptools    \
         python-wheel         \
 # for processing/handling json files in bash environment
-        jq
+        jq                   \
+# for sairedis zmq rpc channel
+        libzmq5
 
 # Install redis-tools
 RUN curl -o redis-tools_6.0.6-1~bpo10+1_amd64.deb "https://sonicstorage.blob.core.windows.net/packages/redis/redis-tools_6.0.6-1~bpo10+1_amd64.deb?sv=2015-04-05&sr=b&sig=73zbmjkf3pi%2Bn0R8Hy7CWT2EUvOAyzM5aLYJWCLySGM%3D&se=2030-09-06T19%3A44%3A59Z&sp=r"

dockers/docker-base-stretch/Dockerfile.j2

@@ -63,7 +63,9 @@ RUN apt-get update &&        \
         python-setuptools    \
         python-wheel         \
 # for processing json files in bash environment
-        jq
+        jq                   \
+# for sairedis zmq rpc channel
+        libzmq5
 
 # Install a newer version of rsyslog from stretch-backports to support -iNONE
 RUN apt-get -y -t stretch-backports install rsyslog