drm/amd/display: Add log end specifier

[Why]
Some debug tools, sometimes wrap around to multiple lines which causes
issues with the DPM test script while it is looking for the logs. Need a
way to tell when the log is finished.

[How]
Added "LOG_END" to the end of the log.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Relja Vojvodic <relja.vojvodic@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn32/dcn32_clk_mgr.c

@@ -565,7 +565,7 @@ static void dcn32_auto_dpm_test_log(
 			"pix_width_0:%d - pix_height_0:%d - refresh_rate_0:%lld - is_scaled_0:%d - "
 			"pix_width_1:%d - pix_height_1:%d - refresh_rate_1:%lld - is_scaled_1:%d - "
 			"pix_width_2:%d - pix_height_2:%d - refresh_rate_2:%lld - is_scaled_2:%d - "
-			"pix_width_3:%d - pix_height_3:%d - refresh_rate_3:%lld - is_scaled_3:%d\n",
+			"pix_width_3:%d - pix_height_3:%d - refresh_rate_3:%lld - is_scaled_3:%d - LOG_END\n",
 			dramclk_khz_override,
 			fclk_khz_override,
 			new_clocks->dcfclk_khz,