Replace is-vendor-board-platform with is-vendor-board-qcom. am: 6309f1ad9c am: 5c7781a6fa

Original change: https://android-review.googlesource.com/c/platform/hardware/qcom/sdm845/display/+/1866335

Change-Id: I93de03eb549664d7b47735e1dd12fe8856a1ab47