Start moving add_lunch_combo to Make

Start deprecating add_lunch_combo, preferring a list of common choices
in each AndroidProducts.mk file.

This list will be validated so that we don't have typos:

https://android-review.git.corp.google.com/c/device/generic/car/+/619533

Or targets that no longer exist.

Bug: 77599627
Test: lunch
Test: lunch 34
Test: lunch aosp_x86_64-eng
Test: lunch aosp_<tab>
Change-Id: Ie0ddaa94cbd6cee26584f56f1706a8ec1333f87e