Revert "mondrianwifi: Equate /system/vendor/firmware /system/etc/firmware"

This reverts commit d46caaf676ab3b3ce52ca6cd25a197edd2f5e8fe.

Change-Id: Ie2107b7a3516643b2816c464a836ffb3d211490d
Merge remote-tracking branch 'cm/cm-11.0' into HEAD