PEL: Point to libpldm repo in subproject

PLDM split into two repositories, so point at the one that is actually
needed as a subproject.  Also remove a PLDM meson option that isn't used
anymore.

Change-Id: I79d4084d9dc6260dc1a0915f679d429f3c81792e
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/extensions/openpower-pels/meson.build b/extensions/openpower-pels/meson.build
index 6a07322..e8fbdd4 100644
--- a/extensions/openpower-pels/meson.build
+++ b/extensions/openpower-pels/meson.build
@@ -1,6 +1,6 @@
 libpldm_dep = dependency(
     'libpldm',
-    default_options: ['libpldm-only=enabled', 'oem-ibm=enabled'],
+    default_options: ['oem-ibm=enabled'],
 )
 
 if cpp.has_header('nlohmann/json.hpp')
diff --git a/subprojects/libpldm.wrap b/subprojects/libpldm.wrap
new file mode 100644
index 0000000..5c90142
--- /dev/null
+++ b/subprojects/libpldm.wrap
@@ -0,0 +1,6 @@
+[wrap-git]
+url = https://github.com/openbmc/libpldm.git
+revision = HEAD
+
+[provide]
+libpldm = libpldm_dep
diff --git a/subprojects/pldm.wrap b/subprojects/pldm.wrap
deleted file mode 100644
index f85d293..0000000
--- a/subprojects/pldm.wrap
+++ /dev/null
@@ -1,6 +0,0 @@
-[wrap-git]
-url = https://github.com/openbmc/pldm.git
-revision = HEAD
-
-[provide]
-libpldm = libpldm_dep