tree fe6fbd674e8883db0f06d1cf1218cf5a5c955053
parent 7c0a5dc19419a453774e9bc5265f60af655ec0c0
author Joseph Reynolds <joseph-reynolds@charter.net> 1639762840 -0600
committer Joseph Reynolds <joseph-reynolds@charter.net> 1639777170 -0600

prepare-emmc-qemu: Use xz or xzdec

This enhances prepare-emmc-qemu to use whichever of the xz or xzdec
commands is available.  (It stops if neither is available.)

Tested: Ran successfully under bash with xz available.

Signed-off-by: Joseph Reynolds <joseph-reynolds@charter.net>
Change-Id: I3e4e12f8de3b32433d554502db86ca41e8809ff2