drm/amd/display: DCE12 num_timing_generators should be 6

We should also use it to determine pipe count.
Signed-off-by: NHarry Wentland <harry.wentland@amd.com>
Reviewed-by: NTony Cheng <Tony.Cheng@amd.com>
Acked-by: NHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c

@@ -426,7 +426,7 @@ static const struct bios_registers bios_regs = {
 };
 
 static const struct resource_caps res_cap = {
-		.num_timing_generator = 3,
+		.num_timing_generator = 6,
 		.num_audio = 7,
 		.num_stream_encoder = 6,
 		.num_pll = 6,
@@ -909,7 +909,7 @@ static bool construct(
 	pool->base.funcs = &dce120_res_pool_funcs;
 
 	/* TODO: Fill more data from GreenlandAsicCapability.cpp */
-	pool->base.pipe_count = 6;
+	pool->base.pipe_count = res_cap.num_timing_generator;
 	pool->base.underlay_pipe_index = NO_UNDERLAY_PIPE;
 
 	dc->public.caps.max_downscale_ratio = 200;