added droid razr hd (xt926) in vendor setups and makefiles.
added xt926 makefile
Update xenonhd_xt926.mk
Update xenonhd_xt926.mk
Update xenonhd_xt926.mk
rearranged makefiles to get desired result
reconfigured xt926 mk file
changed xt926 to vanquish
added vanquish makefile