am c955834a: am c048c9b5: default empty tapas to TARGET_BUILD_APPS "all"

Merge commit 'c955834ad0715343a2245142be416f92b83e8306' into gingerbread-plus-aosp

* commit 'c955834ad0715343a2245142be416f92b83e8306':
  default empty tapas to TARGET_BUILD_APPS "all"