amdgpu: sync up oland firmware with 18.20 release

From internal commit:
4e9bb623d83a96a783fd92ad1a4d9b05a3284d7c

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -1928,6 +1928,14 @@ File: amdgpu/hainan_me.bin
 File: amdgpu/hainan_pfp.bin
 File: amdgpu/hainan_rlc.bin
 File: amdgpu/hainan_smc.bin
+File: amdgpu/oland_ce.bin
+File: amdgpu/oland_k_smc.bin
+File: amdgpu/oland_mc.bin
+File: amdgpu/oland_me.bin
+File: amdgpu/oland_pfp.bin
+File: amdgpu/oland_rlc.bin
+File: amdgpu/oland_smc.bin
+File: amdgpu/si58_mc.bin
 File: amdgpu/banks_k_2_smc.bin
 File: amdgpu/bonaire_ce.bin
 File: amdgpu/bonaire_k_smc.bin