drm/radeon: add get_allowed_info_register for CIK

Registers that can be fetched from the info ioctl.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 21e5fe6..fafd8ce 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2075,6 +2075,7 @@
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &cik_get_xclk,
 	.get_gpu_clock_counter = &cik_get_gpu_clock_counter,
+	.get_allowed_info_register = cik_get_allowed_info_register,
 	.gart = {
 		.tlb_flush = &cik_pcie_gart_tlb_flush,
 		.get_page_entry = &rs600_gart_get_page_entry,
@@ -2187,6 +2188,7 @@
 	.mc_wait_for_idle = &evergreen_mc_wait_for_idle,
 	.get_xclk = &cik_get_xclk,
 	.get_gpu_clock_counter = &cik_get_gpu_clock_counter,
+	.get_allowed_info_register = cik_get_allowed_info_register,
 	.gart = {
 		.tlb_flush = &cik_pcie_gart_tlb_flush,
 		.get_page_entry = &rs600_gart_get_page_entry,