core-all to core-oj for the apex.test example

core-all is a build-only artifact and isn't supposed to be installed to
the device.

Bug: 118485880
Test: TARGET_FLATTEN_APEXS=true m apex.test; tree
out/target/product/.../system/apex/apex.test shows list of files in it.

Test; m apex.test, then a file out/target/product/.../system/apex/apex
.test.apex exists.

Change-Id: I1eab91bd0e6b9d27a59c50644b3718449210fa28
1 file changed
tree: 5e2c4f96f72339a0f77e7197a9c2b57f6c7257f1
  1. apexd/
  2. apexer/
  3. testdata/
  4. Android.bp
  5. OWNERS
  6. PREUPLOAD.cfg