meson: adjust nlohmann-json dependency

Simplify the meson dependency for nlohmann-json, use the consistent
dependency name, and align the wrap file name with other repositories.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I3a682a3e07e38d0a1bfe35858e24f1bb74b4ec34
diff --git a/libpldmresponder/meson.build b/libpldmresponder/meson.build
index f949db9..687fa82 100644
--- a/libpldmresponder/meson.build
+++ b/libpldmresponder/meson.build
@@ -1,7 +1,7 @@
 libpldmresponder_deps = [
   phosphor_dbus_interfaces,
   phosphor_logging_dep,
-  nlohmann_json,
+  nlohmann_json_dep,
   sdbusplus,
   sdeventplus,
   libpldm_dep,