Bug 855003 - Update gonk-misc pointer in emulator manifest
Bug 873319 - Fix keon manifest to use v1-train branch of gonk-misc
Apply profiling changes

Change-Id: Ieaefb5eb3dcf8ade695a3317f8840d84fcc52277
We still need to edit build/target/product/b2g.mk on v1-train

Change-Id: I187c371775e90a053c27f93533ddc5f6dce74959