Deb: install libcjson package in service VM automatically

Libcjson package is needed by command monitor of DM, so this
should be installed in the target platform.

Tracked-On: #5921

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>

misc/packaging/gen_acrn_deb.py

@@ -70,6 +70,7 @@ def create_acrn_deb(board, scenario, version, build_dir):
 
     listcontrol=['Package: acrn-hypervisor\n',
                 'version: %s \n'% version,
+		'Depends: libcjson1\n',
                 'Section: free \n',
                 'Priority: optional \n',
                 'Architecture: amd64 \n',