drm/amd/display: Enable P-state validation checks for DCN314

[Why]
To align with DCN31 behavior. This helps avoid p-state hangs in
the case where underflow does occur.

[How]
Flip the bit to true.
Reviewed-by: Hansen Dsouza <hansen.dsouza@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@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/dcn314/dcn314_resource.c

@@ -901,7 +901,7 @@ static const struct dc_debug_options debug_defaults_drv = {
 	.max_downscale_src_width = 4096,/*upto true 4k*/
 	.disable_pplib_wm_range = false,
 	.scl_reset_length10 = true,
-	.sanity_checks = false,
+	.sanity_checks = true,
 	.underflow_assert_delay_us = 0xFFFFFFFF,
 	.dwb_fi_phase = -1, // -1 = disable,
 	.dmub_command_table = true,