generate OTA packages that use edify

Split the details of generating script syntax into a generator class:
one for amend (whose output should be equivalent to the current
output), and one for edify.

Fix 'otatools' build rule to build imgdiff.
4 files changed
tree: 82249f4e7fba22a404bdb645fd42b68ca256d55d
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh