Merge "Add --sdk_target option to update_prebuilts.py" am: 1642d260b4 am: 2677a3876a am: d4736d4aaf am: 45010e7f1c

Original change: https://android-review.googlesource.com/c/platform/prebuilts/sdk/+/1873780

Change-Id: Ia7ce005fd7a79929ce2ab8164f5efe40a75c9a4d