wifi: Jar jar all external dependencies to a singe namespace

Differentiation between framework-wifi & service-wifi included static
dependencies were getting a little hard to manage. Also, use
com.androd.wifi.x@0 to preserve the original package name.

Bug: 153697614
Test: Device boots up and connects to wifi networks
Test: Manual inspection using dexdump on both framework-wifi.jar & service-wifi.jar
Change-Id: Ifa1efaa772a708c0d40d2d9be415d0c42b71b332