drm/amdgpu: add ih ip block for navy_flounder

navy_flounder has the same osssys IP verison with
sienna_cichlid, follow its setting.
Signed-off-by: Jiansong Chen <Jiansong.Chen@amd.com>
Reviewed-by: Tao Zhou <Tao.Zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/navi10_ih.c

@@ -270,6 +270,7 @@ static int navi10_ih_irq_init(struct amdgpu_device *adev)
 		if (ih->use_bus_addr) {
 			switch (adev->asic_type) {
 			case CHIP_SIENNA_CICHLID:
+			case CHIP_NAVY_FLOUNDER:
 				ih_chicken = RREG32_SOC15(OSSSYS, 0, mmIH_CHICKEN_Sienna_Cichlid);
 				ih_chicken = REG_SET_FIELD(ih_chicken,
 						IH_CHICKEN, MC_SPACE_GPA_ENABLE, 1);

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

@@ -526,6 +526,7 @@ int nv_set_ip_blocks(struct amdgpu_device *adev)
 	case CHIP_NAVY_FLOUNDER:
 		amdgpu_device_ip_block_add(adev, &nv_common_ip_block);
 		amdgpu_device_ip_block_add(adev, &gmc_v10_0_ip_block);
+		amdgpu_device_ip_block_add(adev, &navi10_ih_ip_block);
 		break;
 	default:
 		return -EINVAL;