build: add phosphor-logging dep and wrap

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I75d0e33c2e0432ef77e4d8618ebf28c6e4b3d8d0
diff --git a/meson.build b/meson.build
index 296eddf..0548596 100644
--- a/meson.build
+++ b/meson.build
@@ -42,6 +42,11 @@
     ],
 )
 
+phosphor_logging_dep = dependency(
+    'phosphor-logging',
+    fallback: ['phosphor-logging', 'phosphor_logging_dep'],
+)
+
 if cpp.has_header('nlohmann/json.hpp')
     nlohmann_json = declare_dependency()
 else