Create a zip file containing the zipped boot image files.
Test: m out/soong/sailfish/dex_bootjars/boot.zip
Change-Id: I1b08c9aca962a5999585cbe9e665693ef4558524
Copying p.rel doesn't work, as rel needs to match the end of the
value in path. Apply the same transformation to p.rel as p.path.
Test: paths_test.go
Change-Id: I42d676c6c4fc18d9852c1a73f25e5a791d7553d0
Make is not setting PreoptBootJars, pass the value computed in
Soong back to Make.
Test: m checkbuild
Change-Id: Ie3db926df9c5d6bf18db1003b95823c7566800a9
Refactor dexpreopt_bootjars.go so that buildBootImage can be called
with a bootImageConfig to create rules to build the boot image in
preparation for building multiple boot images.
Test: m checkbuild
Change-Id: I7ba40a0988c8acbd6c1ee4e36f4bbb34fb4e2d24