Merge "Move the mainline SDK definition to system/libartpalette." am: c0f0e221d2 am: 2009042ae2

Original change: https://android-review.googlesource.com/c/platform/prebuilts/sdk/+/1382578

Change-Id: I6b97f8fc4278201b4412f4de271e50d01bfee5e9