drm/amd/display: Disable PHYSYMCLK RCO

[Why]
PHYSYMCLK RCO has been found to lead to crashes in some
corner cases

[How]
Disable PHYSYMCLK RCO debug bit
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c

@@ -758,7 +758,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 			.symclk32_se = true,
 			.symclk32_le = true,
 			.symclk_fe = true,
-			.physymclk = true,
+			.physymclk = false,
 			.dpiasymclk = true,
 		}
 	},

drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c

@@ -738,7 +738,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 			.symclk32_se = true,
 			.symclk32_le = true,
 			.symclk_fe = true,
-			.physymclk = true,
+			.physymclk = false,
 			.dpiasymclk = true,
 		}
 	},