libpldm: Migrate to subproject

Organize files in libpldm to make it a subproject

In the current state, libpldm is not readily consumable
as a subproject.This commit does all the necessary re-organisation
of the source code to make it work as a subproject.

There are no .c/.h files changes in this commit, only meson
changes and re-organising the code structure.

Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
Change-Id: I20a71c0c972b1fd81fb359d604433618799102c6
diff --git a/include/libpldm/oem/ibm/libpldm/fru_oem_ibm.h b/include/libpldm/oem/ibm/libpldm/fru_oem_ibm.h
new file mode 100644
index 0000000..c97f8b0
--- /dev/null
+++ b/include/libpldm/oem/ibm/libpldm/fru_oem_ibm.h
@@ -0,0 +1,21 @@
+#ifndef OEM_IBM_FRU_H
+#define OEM_IBM_FRU_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stddef.h>
+#include <stdint.h>
+
+enum pldm_oem_ibm_fru_field_type {
+	PLDM_OEM_FRU_FIELD_TYPE_IANA = 0X01,
+	PLDM_OEM_FRU_FIELD_TYPE_RT = 0X02,
+	PLDM_OEM_FRU_FIELD_TYPE_LOCATION_CODE = 0XFE,
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* OEM_IBM_FRU_H */