[project][qemu] Fix Android prebuilt copy during build
During the previous update of the Android prebuilt code was added to
ensure consistent file permissions, with files unpacked from build
artifacts made un-writeable. These permissions copy over to the
build-root. During the second build for a given target the copying of the
prebuilt's files will fail, as you're attempting to overwrite an
un-writeable file.
This change wipes the target directory before copying new files,
ensuring second builds and beyond start from the same perspective as a
first build.
Bug: 234788755
Change-Id: I5a6026e940fbc54296fd5b9d6fdd1b9bf28e1ff8
1 file changed
