finally merged
Update conf/machine/vortex-sbc/vortex-sbc.bblayers.conf.sample, conf/machine/vox-150/vox-150.bblayers.conf.sample, conf/machine/som9x25/som9x25.bblayers.conf.sample, conf/machine/som9g25/som9g25.bblayers.conf.sample, conf/machine/ppc-150t/ppc-150t.bblayers.conf.sample, conf/machine/hmi-043t/hmi-043t.bblayers.conf.sample