servo_rauru_overlay.xml: default CCD flashing path: i2c => uart

EC chip name: it8xxx2 => ite_spi_ccd_uart, as ITE UART programming is landed.

BUG=b:328620169
TEST=checkout https://crrev.com/c/5847109
TEST=Run util/flash_ec --board rauru --image
build/zephyr/rauru/output/ec.bin with Servo_v4 only

Change-Id: I7eaa2c4640bcd4a95a0935061fe84fbbf49252be
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/hdctools/+/5772494
Tested-by: Alvis Hsu <alvishsu@google.com>
Reviewed-by: Eric Yilun Lin <yllin@google.com>
Commit-Queue: Alvis Hsu <alvishsu@google.com>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: 488603086791@cloudbuild.gserviceaccount.com <488603086791@cloudbuild.gserviceaccount.com>
1 file changed