Check device's launch API level before using new compresison algo

If a T launch device later changes to LZ4(which is supported since U),
we will fallback to older compression algorithms, because if the full
OTA is applied on an T build, the update_engine on device won't support
lz4.

Bug: 295989519
Test: generate full OTA for T launched devices, make sure lz4 is not
used

Change-Id: I82fdf788e47e2a6daeaa4479bfecf317d8ebb5d5