Restore unique mac setting but only apply macs to wifi base interfaces and batadv virtual interfaces

This reverts commit ac57fb443836f8bb80402b4201d012ab26da83a0.

Conflicts:

	packages/wbm-testbed/files/etc/wbm/protos/mgmt.sh
	packages/wbm-testbed/files/usr/bin/wbm-config