drm/amdgpu: fix topaz/tonga gmc assignment in 4.4 stable

When upstream commit 429c45de
was applied to 4.4 as d60703ca
it applied incorrectly to the tonga_ip_blocks array rather than
the topaz_ip_blocks array.  Fix that up here.

Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=113951Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/gpu/drm/amd/amdgpu/vi.c

@@ -1082,10 +1082,10 @@ static const struct amdgpu_ip_block_version topaz_ip_blocks[] =
 	},
 	{
 		.type = AMD_IP_BLOCK_TYPE_GMC,
-		.major = 8,
-		.minor = 0,
+		.major = 7,
+		.minor = 4,
 		.rev = 0,
-		.funcs = &gmc_v8_0_ip_funcs,
+		.funcs = &gmc_v7_0_ip_funcs,
 	},
 	{
 		.type = AMD_IP_BLOCK_TYPE_IH,
@@ -1129,10 +1129,10 @@ static const struct amdgpu_ip_block_version tonga_ip_blocks[] =
 	},
 	{
 		.type = AMD_IP_BLOCK_TYPE_GMC,
-		.major = 7,
-		.minor = 4,
+		.major = 8,
+		.minor = 0,
 		.rev = 0,
-		.funcs = &gmc_v7_0_ip_funcs,
+		.funcs = &gmc_v8_0_ip_funcs,
 	},
 	{
 		.type = AMD_IP_BLOCK_TYPE_IH,