drm/amd/display: Update gpuvm_max_page_table_levels IP param

After some experimental tests, we noticed that we need to set
gpuvm_max_page_table_levels to '4' to meet the hardware requirements.
Signed-off-by: NEric Bernstein <eric.bernstein@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c

@@ -121,7 +121,7 @@ static const struct IP_BASE DCN_BASE = { { { { 0x00000012, 0x000000C0, 0x000034C
 
 struct _vcs_dpi_ip_params_st dcn3_2_ip = {
 	.gpuvm_enable = 1,
-	.gpuvm_max_page_table_levels = 1,
+	.gpuvm_max_page_table_levels = 4,
 	.hostvm_enable = 0,
 	.rob_buffer_size_kbytes = 128,
 	.det_buffer_size_kbytes = DCN3_2_DEFAULT_DET_SIZE,

drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c

@@ -124,7 +124,7 @@ static const struct IP_BASE DCN_BASE = { { { { 0x00000012, 0x000000C0, 0x000034C
 
 struct _vcs_dpi_ip_params_st dcn3_21_ip = {
 	.gpuvm_enable = 1,
-	.gpuvm_max_page_table_levels = 1,
+	.gpuvm_max_page_table_levels = 4,
 	.hostvm_enable = 0,
 	.rob_buffer_size_kbytes = 128,
 	.det_buffer_size_kbytes = DCN3_2_DEFAULT_DET_SIZE,