drm/amd/powerplay: use true, false for bool variable in vega20_hwmgr.c

Fixes coccicheck warning:

drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c:875:1-31: WARNING: Assignment of 0/1 to bool variable
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c

@@ -872,7 +872,7 @@ static int vega20_override_pcie_parameters(struct pp_hwmgr *hwmgr)
 		"[OverridePcieParameters] Attempt to override pcie params failed!",
 		return ret);
 
-	data->pcie_parameters_override = 1;
+	data->pcie_parameters_override = true;
 	data->pcie_gen_level1 = pcie_gen;
 	data->pcie_width_level1 = pcie_width;