meson: adjust nlohmann-json dependency

- Add the 'include_type' field to avoid clang-tidy warnings.
- Rename wrap file to align with meson wrapdb choice.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I11866aa34c7b8defb0463c2d7bb9ec3fdb67c92d
diff --git a/meson.build b/meson.build
index cfaf101..614351f 100644
--- a/meson.build
+++ b/meson.build
@@ -22,7 +22,7 @@
 sdbusplus = dependency('sdbusplus')
 systemd = dependency('systemd')
 
-nlohmann_json_dep = dependency('nlohmann_json')
+nlohmann_json_dep = dependency('nlohmann_json', include_type: 'system')
 
 if cxx.has_header('CLI/CLI.hpp')
     cli11_dep = declare_dependency()
diff --git a/subprojects/nlohmann-json.wrap b/subprojects/nlohmann_json.wrap
similarity index 100%
rename from subprojects/nlohmann-json.wrap
rename to subprojects/nlohmann_json.wrap