amdgpu: add UVD firmware for SI asics

From internal git commit:
511542f7a4f1984b5f830ce92374b9e08a7d2fd5
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -2054,6 +2054,7 @@ File: amdgpu/tahiti_me.bin
 File: amdgpu/tahiti_pfp.bin
 File: amdgpu/tahiti_rlc.bin
 File: amdgpu/tahiti_smc.bin
+File: amdgpu/tahiti_uvd.bin
 File: amdgpu/pitcairn_ce.bin
 File: amdgpu/pitcairn_k_smc.bin
 File: amdgpu/pitcairn_mc.bin
@@ -2061,6 +2062,7 @@ File: amdgpu/pitcairn_me.bin
 File: amdgpu/pitcairn_pfp.bin
 File: amdgpu/pitcairn_rlc.bin
 File: amdgpu/pitcairn_smc.bin
+File: amdgpu/pitcairn_uvd.bin
 File: amdgpu/verde_ce.bin
 File: amdgpu/verde_k_smc.bin
 File: amdgpu/verde_mc.bin
@@ -2068,6 +2070,7 @@ File: amdgpu/verde_me.bin
 File: amdgpu/verde_pfp.bin
 File: amdgpu/verde_rlc.bin
 File: amdgpu/verde_smc.bin
+File: amdgpu/verde_uvd.bin
 File: amdgpu/hainan_ce.bin
 File: amdgpu/hainan_k_smc.bin
 File: amdgpu/hainan_mc.bin
@@ -2082,6 +2085,7 @@ File: amdgpu/oland_me.bin
 File: amdgpu/oland_pfp.bin
 File: amdgpu/oland_rlc.bin
 File: amdgpu/oland_smc.bin
+File: amdgpu/oland_uvd.bin
 File: amdgpu/si58_mc.bin
 File: amdgpu/banks_k_2_smc.bin
 File: amdgpu/bonaire_ce.bin