drm/amdgpu: add DCI HWIP

So we can track grab the appropriate DCE info out of the
IP discovery table.  This is a separare IP from DCN.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -756,6 +756,7 @@ enum amd_hw_ip_block_type {
 	UMC_HWIP,
 	RSMU_HWIP,
 	XGMI_HWIP,
+	DCI_HWIP,
 	MAX_HWIP
 };
 

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

@@ -149,6 +149,7 @@ static int hw_id_map[MAX_HWIP] = {
 	[CLK_HWIP]	= CLKA_HWID,
 	[UMC_HWIP]	= UMC_HWID,
 	[XGMI_HWIP]	= XGMI_HWID,
+	[DCI_HWIP]	= DCI_HWID,
 };
 
 static int amdgpu_discovery_read_binary(struct amdgpu_device *adev, uint8_t *binary)