add spdlog to host as well

Author: rongou

conda/recipes/librmm/meta.yaml

@@ -27,6 +27,7 @@ requirements:
     - cmake >=3.12.4
   host:
     - cudatoolkit {{ cuda_version }}.*
+    - spdlog >=1.4.2
   run:
     - {{ pin_compatible('cudatoolkit', max_pin='x.x') }}
     - spdlog >=1.4.2