oem-meta: Add OEM Meta handler

Add OEM Meta class.

Change-Id: Id069d7d491819e446368d78da28a6590bfc6faa9
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
Signed-off-by: Sora Su <baxiche@gmail.com>
diff --git a/meson.build b/meson.build
index 9b5b00b..d0ec1c1 100644
--- a/meson.build
+++ b/meson.build
@@ -204,6 +204,10 @@
     add_project_arguments('-DOEM_AMPERE', language: 'cpp')
 endif
 
+if get_option('oem-meta').allowed()
+    add_project_arguments('-DOEM_META', language: 'cpp')
+endif
+
 libpldmutils_headers = ['.']
 libpldmutils = library(
     'pldmutils',
@@ -242,6 +246,10 @@
     subdir('oem/ampere')
 endif
 
+if get_option('oem-meta').allowed()
+    subdir('oem/meta')
+endif
+
 if get_option('libpldmresponder').allowed()
     subdir('libpldmresponder')
     deps += [libpldmresponder_dep]