msm7x27a-common:rootdir: hostapd folder in etc

Change-Id: I3c28009201d789656883721f913092c55bcb9efb
msm7x27a-common: sync header with kernel

Change-Id: I8becadbf79d3f0228fb1311bb9b4a5ff434beca8
msm7x27a-common: switch to media-caf

Change-Id: I73715cf79ca371fcc600eecef52d8c042a730e0d