thundersonic/wcd9304: Create new handles, sound control engine by @varunchitre15
codecs:Kconfig: initial bring up:ThunderSonic Sound Engine 

Introducing a new sound control driver for wcd9304 sound card wholly written by varunchitre15
codecs: Makefile: initial bring up: ThunderSonic Sound Engine
codecs: add thundersonic_engine.c
Merge pull request #16 from NoelMacwan/master

nicki: bring up thundersonic engine by @varunchitre15 and updates on sitar sound driver