qcacld-3.0: Replace legacy string in vdevmgr with ext

Replace legacy string in vdevmgr with ext string.
Also adds new compile CMN_VDEV_MLME_CMPT_ENABLE macro
for VDEV MLME component.

Change-Id: I40ce0c2ee4d653d2f4ce68093e8ad1b2c78bece8
CRs-Fixed: 2361525
5 files changed