Add missing nlohmann_json dependency

The bios-password part of code relies on seed file which is
in JSON format and also uses the nlohmann parse functions to
parse it, so add it to the dependency list.

Change-Id: I7f4ab5a79f8909ee527861a9275ddc2282599a67
Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
diff --git a/meson.build b/meson.build
index 146fa4e..d9b7b37 100644
--- a/meson.build
+++ b/meson.build
@@ -35,6 +35,7 @@
         dependency('sdbusplus'),
         dependency('systemd'),
         dependency('openssl'),
+        dependency('nlohmann_json',include_type: 'system')
 ]
 
 src_files = ['src/main.cpp',
diff --git a/subprojects/nlohmann-json.wrap b/subprojects/nlohmann-json.wrap
new file mode 100644
index 0000000..7c47ba2
--- /dev/null
+++ b/subprojects/nlohmann-json.wrap
@@ -0,0 +1,7 @@
+[wrap-git]
+url = https://github.com/nlohmann/json.git
+revision = HEAD
+
+[provide]
+nlohmann_json = nlohmann_json_dep
+