drm/amd/powerplay: rv: Use designated initializers

As done for vega10 in commit 3ddd396f6b57 ("drm/amd/powerplay: Use
designated initializers") mark other tableFunction entries with designated
initializers. The randstruct plugin requires designated initializers for
structures that are entirely function pointers.

Cc: Rex Zhu <[e-mail]>
Cc: Hawking Zhang <[e-mail]>
Signed-off-by: Kees Cook <[e-mail]>
Acked-by: Alex Deucher <[e-mail]>

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

···
 }
 
 static const struct phm_master_table_item rv_set_power_state_list[] = {
-	{ NULL, rv_tf_set_clock_limit },
-	{ NULL, rv_tf_set_num_active_display },
+	{ .tableFunction = rv_tf_set_clock_limit },
+	{ .tableFunction = rv_tf_set_num_active_display },
 	{ }
 };
 
···
 }
 
 static const struct phm_master_table_item rv_disable_dpm_list[] = {
-	{NULL, rv_tf_disable_gfx_off},
+	{ .tableFunction = rv_tf_disable_gfx_off },
 	{ },
 };
 
···
 }
 
 static const struct phm_master_table_item rv_enable_dpm_list[] = {
-	{NULL, rv_tf_enable_gfx_off},
+	{ .tableFunction = rv_tf_enable_gfx_off },
 	{ },
 };