[ovsp4rt] Fix compilation error

- Added missing include directory and link libraries when
  building ovsp4rt_client object library.

Signed-off-by: Derek Foster <justffoulkes@gmail.com>

ovs-p4rt/sidecar/client/CMakeLists.txt

@@ -15,6 +15,13 @@ add_library(ovsp4rt_client_o OBJECT
 
 target_include_directories(ovsp4rt_client_o PUBLIC
   ${SIDECAR_SOURCE_DIR}
+  ${STRATUM_SOURCE_DIR}
+)
+
+target_link_libraries(ovs_sidecar_o PUBLIC
+  p4_role_config_proto
+  p4runtime_proto
+  stratum_utils
 )
 
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