[esp32] Add OTA rollback support (#12460)

Co-authored-by: Claude <noreply@anthropic.com>

tests/components/esp32/test.esp32-idf.yaml

@@ -3,6 +3,7 @@ esp32:
   framework:
     type: esp-idf
     advanced:
+      enable_ota_rollback: true
       enable_lwip_mdns_queries: true
       enable_lwip_bridge_interface: true
       disable_libc_locks_in_iram: false  # Test explicit opt-out of RAM optimization