Bulk get/set for switches

Signed-off-by: Shrikrishna (Shri) Khare <skhare@meta.com>

Author: Shrikrishna (Shri) Khare

inc/saiswitch.h

@@ -4061,6 +4061,8 @@ typedef struct _sai_switch_api_t
     sai_get_switch_tunnel_attribute_fn     get_switch_tunnel_attribute;
     sai_switch_mdio_cl22_read_fn           switch_mdio_cl22_read;
     sai_switch_mdio_cl22_write_fn          switch_mdio_cl22_write;
+    sai_bulk_object_set_attribute_fn       set_switches_attribute;
+    sai_bulk_object_get_attribute_fn       get_switches_attribute
 
 } sai_switch_api_t;