drm/amd/powerplay: fix soft pptable size for Vega10

It is to fix bug of sysfs entry pp_table which had size 0 of output before.
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_processpptables.c

@@ -54,6 +54,7 @@ static const void *get_powerplay_table(struct pp_hwmgr *hwmgr)
 						&size, &frev, &crev);
 
 		hwmgr->soft_pp_table = table_address;	/*Cache the result in RAM.*/
+		hwmgr->soft_pp_table_size = size;
 	}
 
 	return table_address;