lib/oelite: Automatically add task function to emit flag for related funcs
lib/oelite: Automatically add task function to emit flag for related funcs

Functions (or actually, any variable) prefixed with do_foobar_
(and do_foobar itself) will automatically get "do_foobar" appended to
it's emit flag, thus by default making all such functions only available
in the corresponding task.

hundeboll/core,sknsean/core,diorcety/oe-lite-core,hundeboll/core,hundeboll/core,sknsean/core,sknsean/core,hundeboll/core,diorcety/oe-lite-core,sknsean/core,sknsean/core