drm/amd/display: Initialize debug variable data

Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c

@@ -130,7 +130,7 @@ bool hubbub1_verify_allow_pstate_change_high(
 	static unsigned int max_sampled_pstate_wait_us; /* data collection */
 	static bool forced_pstate_allow; /* help with revert wa */
 
-	unsigned int debug_data;
+	unsigned int debug_data = 0;
 	unsigned int i;
 
 	if (forced_pstate_allow) {