We automatically pull the compile SDK from the platform. But,
in certain circumstances the platform's SDK codename is
incorrect. Allow the name to be overridden on the command line.
Change-Id: I398f1b00b29db42e4ce202b94cda483c98971a14
Fixes: 78324052
Test: ./out/host/linux-x86/nativetest64/aapt2_tests/aapt2_tests