Stabilize PLDM File Transfer related APIs

Thit commit stabilizes PLDM File Transfer API. The APIs include:

- decode_pldm_platform_file_descriptor_pdr()
- encode_pldm_base_multipart_receive_req()
- decode_pldm_base_multipart_receive_resp()
- encode_pldm_base_negotiate_transfer_params_req()
- decode_pldm_base_negotiate_transfer_params_resp()
- encode_pldm_file_df_open_req()
- decode_pldm_file_df_open_resp()
- encode_pldm_file_df_close_req()
- decode_pldm_file_df_close_resp()
- encode_pldm_file_df_heartbeat_req()
- decode_pldm_file_df_heartbeat_resp()

Use of decode_pldm_platform_file_descriptor_pdr() is demonstrated in
[1], and the remainder in [2].

Therefore, the gcc.dump file is regenerated accordingly.

[1]: https://gerrit.openbmc.org/c/openbmc/pldm/+/82342
[2]: https://gerrit.openbmc.org/c/openbmc/pldm/+/82471

Change-Id: I6f60845b459c6fd0371925468927f8ff15ec4033
Signed-off-by: Chau Ly <chaul@amperecomputing.com>
diff --git a/src/dsp/platform.c b/src/dsp/platform.c
index 9af2d67..1a2c962 100644
--- a/src/dsp/platform.c
+++ b/src/dsp/platform.c
@@ -3472,7 +3472,7 @@
 	return event->event_data;
 }
 
-LIBPLDM_ABI_TESTING
+LIBPLDM_ABI_STABLE
 int decode_pldm_platform_file_descriptor_pdr(
 	const void *data, size_t data_length,
 	struct pldm_platform_file_descriptor_pdr *pdr)