lib/oelite: Implement ${MACHINE_OVERRIDES} propagation to depending recipes
lib/oelite: Implement ${MACHINE_OVERRIDES} propagation to depending recipes

(closes #125)

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