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/meson.build b/include/libpldm/meson.build
new file mode 100644
index 0000000..0d25754
--- /dev/null
+++ b/include/libpldm/meson.build
@@ -0,0 +1,35 @@
+libpldm_include_dir += include_directories('.')
+
+libpldm_headers += files(
+  'base.h',
+  'pldm_types.h',
+  'platform.h',
+  'bios.h',
+  'bios_table.h',
+  'entity.h',
+  'states.h',
+  'state_set.h',
+  'fru.h',
+  'utils.h',
+  'pdr.h',
+  'firmware_update.h'
+  )
+
+if get_option('oem-ibm').enabled()
+  libpldm_include_dir += include_directories('oem/ibm')
+  libpldm_headers += files(
+    'oem/ibm/libpldm/entity_oem_ibm.h',
+    'oem/ibm/libpldm/file_io.h',
+    'oem/ibm/libpldm/host.h',
+    'oem/ibm/libpldm/fru_oem_ibm.h',
+    'oem/ibm/libpldm/platform_oem_ibm.h',
+    'oem/ibm/libpldm/state_set_oem_ibm.h'
+  )
+endif
+
+if get_option('requester-api').enabled()
+   libpldm_headers += files(
+    'requester/pldm.h'
+    )
+endif
+